At our Breakfast w/ santa we silent auctions "ginger bread" houses each classroom built. Parents tend to get competitive w/ their child's art.
Gift packs go well. Dinner, movie and hotel "get a way" weekends for parents. (maybe even babysitting--- our red cross keeps a list of names of the teens who take their course)
Our school is k-4 here is what they did last year
1. toy box colored white with each kids in the 3rd grade's hand print. Did two of them!
2. Serving tray and had each kid in K draw something on it and the teacher wrote their name underneath
3. The 2nd grades did a table and chair set with drawings on the table.
A friendship quilt. This can be their names and birthdays. I've also seen a state quilt. Maybe at our school? Anyhow a class made one of these during their study of KY History. Or they can do a family tree quilt. It can be done, the elementary school my son goes to have some hanging in the building that the kids have done.
Stained Glass art- This is super easy. You can have the kids to draw their design out on a piece of paper and tape it on the back of a pre cut piece of plexi glass (any size you want) provide them with the paint and viola you have a sun catcher. I forget what paint you have to use but I am sure someone can help you with that. I made one at a math workshop and did a poinsettia (sp?). I reflected on through my shades when they were pulled down. I also made oragami books at that workshop. Those were simple too.I do have the directions somewhere around here for those.
They can also do tie die shirts. Those were popular when I was in school.
Recipes in a jar- Is that art? I think it may sell anyhow. I have a few recipes on hand.
Is each grade supposed to have an art project or how does that work?
There is a thread on here with great basket idea for silent auctions. Is that something like you are looking for? I am not good at searches like some people on here are, I am sure it is easy to find though.
I need art ideas for a k-6 school to make and use at an Auction March 4th. I know it's cutting it close, however the main auction commitee hasn't got their act together. I need to get something going. I'd also love to hear ideas for silent auction items !