Aisleriot is one of my go-to game apps too. I particularly enjoy the super hard "Agnes" variant. And by "enjoy", I mean that in the stats it shows that I've won only once in 340 attempts.
I actually think these standard hexagonal stickers are a great idea! They seem to be a big deal in the node.js community (I first heard about them at Nodeconf.eu). You can design your own custom ones or for your project, and get them sent to you from here: https://hexi.pics/ (run by people in the nodejs community I believe)