Toys to teach logic circuit concepts, a little more tactile than drawing diagrams. You could also modify them to add magnets so you can put them on a white board. Perhaps can be used to make puzzle for kids w/the bonus of getting a little exposure to ECE(Electrical/Computer Engineering.)
Logic Gate Reference:

Printing Estimates/Stats:
Ave Tile(2 Color) = 15% Infill - 5.31g - $0.10 cost(PLA) - 12m32s printing time
Ave Tile(1 Color) = 15% Infill - 3.69g - $0.07 cost(PLA) - 8m10s printing time
*Update: Added “True State - Input+Output” and “False State - Input+Output” to give internal state outputs.
The author marked this model as their own original creation.