Cubs spend part of an evening using the internet to find an image to use in making their woggle.
At a later time they visit a local maker space or hacker space to make their own custom woggle.
Access to a 3D printer and LASER cutter and some image manipulation software (search for your local hacker or maker space they'll probably be able to help).
Computers with internet access.
Printed work sheets.
Attached STL file to print the woggles from (remove the .txt at the end of the fiename).