I was nerd-sniped (reference from xkcd) by a colleague who wanted to do a cryptographic game for his kids, for a birthday party. The idea was to have a device to allow the kids to encrypt / decrypt a message Principle It's using the Caesar cipher, which is a simple shift cipher. It's super unsafe …
Tag: kids
From a cheap crate to a treasure chest
For my kids birthday, my wife wanted to organize a treasure hunt. The idea was to have a bunch of indices, that would eventually leading to getting 4 numbers, used to unlock a paddlock holding chains around a chest. While the idea seems sound, devils in the detail as we wanted the cost to be …
Piggy bank for kids
My kids are old enough to have their first coins and they were begging for a piggybank to stash their valuables. I had the idea to build them an actual treasure chest, out of plywood. The final design is available on thingiverse, this post will focus on how to design and build it. Design I used …
Bruce's hideout 