I bought some reflectix to make a few small items, and have a lot of material left over. Let's say I make 15 or so meal cozies (for rehydrating Mountain House style meals). Could I post an add saying "I have 15 DIYed cozies available for X dollars each"? Could I just leave the post up until all of the cozies are gone? Is this an acceptable use of the for sale forum?