Personal side projects made for fun

Helping turists to Slovenia select the right vignette for cruising motorways.
Turn your receipts into the success strory with dynamic ads and coupons on receipts. You can finally call me 'full stack'. Backend and frontend - designed and coded.
Simple blockchain implementation in a few lines of c# code.
Give a name to an universally unique identifier and share it with the world. Leave no GUID without a name!
GiveScan from WIA or TWAIN compatible scanner from .NET code (C#, VB.NET, ...) with few lines of code.
This simple game in a form of a chrome extension is a result of a programmer with a newborn and a tablet PC :)