I am not really sure if this is a challenge or a game, but I feel like this is a better place to put this amusement: Hard Words
The rules: pick a word and make it into a level! Try to make it fun and beatable. Of course, you can also present your solutions here.
If you need help thinking of a word, try using http://watchout4snakes.com/creativityto ... dPlus.aspx
To start, I present "Hap"http://FantasticContraption.com/?levelId=10560