This standard black pin gets used the most.  It is used to attach all of floor and wall pieces together and is used on some of the bigger accessories too.  This is the "friction" pin that has good grip on the parts that it connects.

This the second most commonly used pin.  It is full length on one side and much shorter on the other side.  This is used to connect many of the smaller accessories to the walls and floors.   

This pin looks similar to 2780, but it does not have the friction ridges- this pin is used when you want two parts to be connected, but able to spin freely.  I use it for turrets and axles.  

 This is a friction pin that is double wide on one side.  This gets used when I need a stronger connection to a bigger part.  One example of this is attatching the main turrets to the floor on the Battle Platform.

These are cross axles that are 4 studs long.     I cut them to the exact length that I need.

These are cross axles that are 6 studs long.     I cut them to the exact length that I need.

These are cross axles that are 8 studs long.   I cut them to the exact length that I need.

These small transparent elements are used as lights.  I use green and red ones on my boats, planes, docks, and landing pads.  They sit inside part 32002.

These small transparent elements are used as lights.  I use green and red ones on my boats, planes, docks, and landing pads.  They sit inside part 32002.

This is the propellor that I use on the the smaller outboard engines.

We use blue and red ones as spigots on the water cooler.

This is used as the crank wheels on the cranes.

This is used as joy sticks on arcade machines and some consoles. 

This is used as the fire in the urns in the 1:12 cobra temple sets.

This is used as the motor in the elevator sets.

This is used as the energy source in the elevator sets.

TWTADE 10Pcs Rocker Switch ON/Off 2Pin Latching Square Toggle SPST Switch Snap with Wires KCD1-X-F

I use these switches to control the custom circuits in my sets.

CYLAPEX 6 Pack Multicolor Fairy Lights String Battery Operated Fairy Lights Firefly Lights LED Starry String Lights 3.3ft 20 LEDs 

I use these in things like the BWS consoles  and in the HQ power source.

6 Pack 7FT 20 LED Fairy Lights,Battery Powered, String Lights for Party, Wedding, and Christmas Decoration (6Pack 7Ft, Cool White)

I use these in computer consoles.

Mini Submersible LED Lights,Small Waterproof LED Tea Lights Candle with Remote Battery led Operated,RGB Color Changing for Vase Home Party Wedding Table Centerpieces Fountain Halloween Lantern

I use these in search lights and wall mounted lighting.

CHANZON 60pcs 5mm LED Diode Lights Assortment Kit Pack Diffused Round Lens DC 3V 20mA Lighting Bulb Lamp Assorted Variety Color Electronics Components Light Emitting Diodes Parts (6 Colors x 10 pcs)

I use these in consoles.

(Pack of 3 3 AA Battery Holder, 3 AA Battery Holder with Leads, 3 AA Battery Holder with Wires

Used for the motors.

4PCS Square Plastic 2 AA Battery Box with Switch with Wire 2.24x1.22x0.51in DIY Battery Storage Holder Black

Used for the LEDs.

6pcs DC 3V-6V Mini N20 Gear Motor Slow Speed Full Metal Gearbox Without Terminal for Smart Car DIY RC Toys

Used for the Whale rotors.

DisplayBug Plexiglass Sheets Pack of 10 Durable PET Panels for Poster & Picture Frames, Arts & Crafts Plastic Sheeting Protective Sheet Barrier Made in USA (10, 5X7)

Used for windows and monitor screens.

Prime Vinyl Permanent Vinyl - Matte Red Adhesive Vinyl for All Cutting Machine, 12" x10 FT Permanent Outdoor for Decor Sticker, Home Decal, Scrapbooking, Signs

Used for the trim on the cartoon versions of the HQ.

100PCS 1/2" Inch Diameter Hardened Chrome Solid Steel Bearing Balls(12.7mm)

Used under big boats to help them glide on the floor.

316 Stainless Steel Fully Threaded Rod, #6-32 Thread Size, 24" Length, Right Hand Threads

Optionally used for big models (Whale, TBP, Leviathan) to hold the models together better than just pins.

ZQZ 6#32 Hex Nuts,220 Pack 304 (A2-70) Stainless Steel Hardware Nuts,Standard Inch Coarse Thread Nuts

Used to secure the threaded rods.

ANYCUBIC PLA 3D Printer Filament, 3D Printing PLA Filament 1.75mm Dimensional Accuracy +/- 0.02mm, 1KG Reusable Spool (2.2 lbs), Black

ANYCUBIC PLA 3D Printer Filament, 3D Printing PLA Filament 1.75mm Dimensional Accuracy +/- 0.02mm, 1KG Spool (2.2 lbs), Texture Grey

ELEGOO PLA Filament 1.75mm Grey 1KG, 3D Printer Filament Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool(2.2lbs) 3D Printing Filament Fits for Most FDM 3D Printers

PLA Pro Filament 1.75mm Cold White,PLA Plus Filament, Odor Free, Clog Free 3D Printer Filament,1kg Cardboard Spool (2.2lbs), Dimensional Accuracy +/- 0.03 mm, Fit Most FDM 3D Printer

eSUN PLA+ Filament 1.75mm, 3D Printer Filament PLA Plus, Dimensional Accuracy +/- 0.03mm, 1KG Spool (2.2 LBS) 3D Printing Filament for 3D Printers, Olive Green

SUNLU PLA+2.0 3D Printer Filament, Upgrade PLA+ Filament 1.75mm, Tougher and Stronger, Neatly Wound Filament, Dimensional Accuracy +/-0.02mm, 1KG Spool(2.2lbs), Coffee Brown

SUNLU 3D Printer Filament PLA Plus 1.75mm, SUNLU Neatly Wound PLA Filament 1.75mm PRO, PLA+ Filament for Most FDM 3D Printer, Dimensional Accuracy +/- 0.02 mm, 1 kg Spool(2.2lbs), Wood

ELEGOO PLA Filament 1.75mm Orange 1KG, 3D Printer Filament Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool(2.2lbs) 3D Printing Filament Fits for Most FDM 3D Printers

OVERTURE Turbo PLA Filament 1.75mm Rapid PLA Filament High Speed 600mm/s, 1KG Cardboard Spool (2.2lbs), Dimensional Accuracy +/- 0.02mm, Fit Most FDM Printer(Green)

OVERTURE Matte PLA 3D Printer Filament 1.75mm, Matt Surface & Low Warping Filament 1kg Spool (2.2 lbs), Accuracy +/- 0.02 mm, Fit Most FDM Printers (Matte Grass Green)

Geeetech Silk PLA Filament 1.75mm for 3D Printer, Metal-Like Shiny Consumables 1kg (2.2lbs) 1 Spool, Dimensional Accuracy +/- 0.02 mm, Metallic Gold Silk Filament

ELEGOO Silk PLA Filament 1.75mm Bronze 1KG, 3D Printer Filament Dimensional Accuracy +/- 0.02mm, 1kg Spool(2.2lbs) Fits for Most FDM 3D Printers

ELEGOO PLA Filament 1.75mm Red 1KG, 3D Printer Filament Dimensional Accuracy +/- 0.02mm, 1kg Cardboard Spool(2.2lbs) 3D Printing Filament Fits for Most FDM 3D Printers

ELEGOO PLA Filament 1.75mm Dark Blue 1KG, 3D Printer Filament Dimensional Accuracy +/- 0.02mm, 1kg Spool(2.2lbs) Fit Most FDM 3D Printers

PLA High Speed Printer Filament 1.75mm 1kg Cardboard Spool (2.2lbs) Rapid PLA to 5X Faster Printing Filament Dimensional Accuracy +/- 0.02 mm Fits for Most FDM 3D Printer-Yellow

CC3D PLA Max Grass Green Filament 1.75 mm 3D Printer PLA Filament 1KG 2.2LBS Spool 3D Printing Materials Stronger Pro Plus + Green Color

Matte PLA Filament 1.75mm Matte Green, PLA 3D Printer Filament, 1kg Spool (2.2lbs) PLA Filament, Fit Most FDM 3D Printer