3d pens are cool. oh, your Cheap Generic Controller's left stick literally snapped off? its fine, you can always draw a new one. need a unique kickstand for your phone? just draw one. want to surprise a friend? draw them a new desk toy. want your earbuds to have ear hooks? just draw them on, its really that easy. have a cool keychain trinket in mind? you get where this is going.
these things are like cheap too. mine's literally 10$. and they are a good practice for kids. they teach them how to think in 3D, how to work with small objects and how to deal with safety precautions. and they're also fun because they let you implement your literal imagination into things you can touch. and potentially use for something useful, not just hang on a fridge.
why didn't we have any 3d pens in school god damn it