Even though there are any number of examples of homemade painters wet palettes, I thought I'd add mine to the collection too - some part of it maybe helpful? As you can see, it's not pretty, but it works for me. One part though has been a bit of a pain for a while. That part is the parchment. For a while a I had a stack of industrial/trade grade silicon parchment sheets, the problem being that once they ran out, I couldn't seem to track down any more - no makers name. So, I fell back on good ole shop-bought baking sheet ... Now, while this hasn't been a major problem, I found that it didn't take long for the wet sponge and the paint to break through the paper - gradually - and I starting noticing fibers in the paint. Not ideal. Well, to cut a long story short, I stumbled across double-sided silicon baking parchment. Yes, I know, slow on the uptake, but I hadn't thought of it! Anyway, so far it's holding up MUCH better that standard single-side parchment. As ...