IMPROVIZED METHOD, WILL FUNCTION 100%

1- Take whatever you want, in this case we'll use an jetpack as example 2- Make it a model if its multiple parts, if its a single part just clone it and anchor it (this goes for the model too) 3- Now, drag the jetpack (example) to the toilet (example) or where you want it to be 4- Once you do that, select any of the right or left leg (MAKE SURE TO SELECT THE LEG FIRST HOLDING CTRL) 5- Now, select the model you dragged with CTRL (Or the part) and now Shift + G 6- You can now ungroup if it's an model, if its an part you can leave it like that 7- Weld it to anywhere you want it and done! Enjoy 8- For laser : You weld beam start from (example ) scientist mech to (example ) g man beam start