Do you follow Paula Cheney's blog (one lucky day)? I found myself quite taken with the experiments her granddaughters were conducting one rainy day so I tried my hand at one. Can't wait to get my own copy of Tim's Compendium of Curiosities Vol. 3 and get busy trying new things!
I did play with this technique a few more times but I'll share the results at another time. Isn't it fun to just play and try new things?