I searched all the yardsales and thrift stores and have found ALOT of cookie sheets and muffin pans. I bought an assortment of spray paint (silver, gold, red, blue, yellow, and I am sure there are a few colors I am leaving out) I took the spray paint and painted all of the pans. Now I am working on finding ways I can use them during center. So far I have: 1. chicka chicka boom boom tree- used clear contact paper to cover the entire pan and protect the tree. A copy of the book ABC magnets will go with the pan. 2. Upper case letters - printed the letters, after I typed them in MS Word. Used contact paper to cover the tray. A set of ABC magnets will go with the tray 3. Same as #2, except printed small letters to match to upper case. 4. I used ABC stickers scattered on the tray, not in ABC order. The children can match the magnetic letter to the letter on the tray. 5. I used stickers that are crayons which are different colors. Magnetic shapes will be sorted by colors. 6. I used dots that will be matched up with the correct numeral. What else can you think of? My kids have always loved magents, so I want to have an assortment of different trays. Plus I want to be able to change the trays out regularly. I found alot of the cookie sheets for $0.10 (they are pretty nasty, but a coat of spray paint takes care of that). In all I am have spent around $10 towards this project. So far the trays I painted gold are my favorite, since they sparkle!!!