Dude, this thread is massive already! You guys have made the most brilliant things (and I'm dying over the stylish look of everyone's work, these are so radical!)
I think the most fun thing I've made is acrylic standees, I adore collecting these. Even made some standee/keychain hybrids over the summer (using Zapcreatives)
And I recently made some coffee mugs using Vistaprint when they had their big sale!