Try these great programs!
Canva : Free program with tons of design options and templates
Sketchpad : Free, beautiful artistic options but easy for students to manage
Google Canvas : Minimalist interface, Auto syncs to your Drive
Sumo Paint : I'm new to this one, but tons of cool options to check out!
Remove Background.
Here's the website: https://www.remove.bg/
Here's the screencast on how to do it!
More on removing backgrounds with additional tools via blog post from Eric Curts on Ctrl Alt Achieve
Make a Google Form Banner in Google Drawing, find out how in detail with the IgnitionEdu blog
Get Custom Color.
Try image color picker: https://imagecolorpicker.com/
or Chrome's Eye Dropper extension to get the exact HEX #
Try out Cool Text! Pick the style, type your words, generate and then download to use whenever you want it!
Take it to the next level, kids may want to create their own!
This website allows designs to be made free, and then can be printed as stickers!
Try to design your own Emoji to get started
CLICK on the Slides and follow the trail to the Hyperdoc lesson. Everything you need is linked in there.
Have FUN!!