i like to mod a few nerf guns in my spare time. You can find them really cheap at garage sales and its great fun. Like yesterday a finished a rayven I got for xmas and increased the voltage output from 6V to 12.8V and it shoots a lot farther, faster, and it hits harder. You can also do some crazy **** with them once you get good. Like combining 3 machine guns into one.

Also building nerf guns is fun.

Lego mindstorms are a bundle of fun.

10/10 would reccomend if you are okay with slamming your keyboard on the ground because your script is broken because you didnt capitalize a letter in a variable or statement.