This is my remix of Danekshea's awesome little soldering iron stand (Thanks, Danekshea!) :) I just added a piece in the middle to place whatever padding or sponge you prefer.
I printed at 200 microns (0.2mm) in PLA with a 15% infill and it came out great! Haven't noticed any warping from the heat or anything.
PS. Be sure to check out the new facebook group called "3D Printing Useful Things!" - where you can find lots of other useful 3D prints :)