Walmart has the Crayola Marker Air Brush Sprayer for $19.97.
There’s also a link for a $3 mail-in-rebate, making it $16.97 after rebate.
They also have a Crayola Ultimate Art Supplies and Easel for $9.97. The rebate form isn’t linked to that product but it is listed on the same form for a $3 Off rebate, making it $6.97 after rebate.
You can also check out the other Crayola Products that Walmart has tagged as having a rebate.