Was peeping the wiki again as you do, and I saw that decorated pots are the same color as red terra (50). Deco pots would be a particularly useful map material because it's easily clearable with pistons. Same goes for pale oak pressure plates (14) and resin clumps (37). I suppose it might also be nice to have resin blocks, pale oak planks, etc. as well but the pressure plates and resin clumps are particularly useful because of their unique features.
Thanks