Stuff that could be interesting to parents.
spirals https://www.youtube.com/watch?v=7_wP0728vHM ? https://www.shikaiderman.com/craft
Red and blue glasses that allow te get 3D effect on any display or paper.
Toys to print.
Make high resolution planimetric and sattelite maps with Google Maps data.
I could not find really easy hashi(bridges) problems, so I made some myself.
Links for tangram problems.
- Problems without hints.
- Problems split by level. TODO write a script to reformat those to save ink
Collection of unusual shooting devices.
This code can be used for turning Arduino into morse learning gadget or for adding morse functionality into existing Arduino project. It uses state machine design, so it would be easy to merge with your code.
CW Keyer is a good alternative for a serious project.
2D planet simulator. It was written in Flash, so I guess it is obsolete now.
