I recently found an amazing site that has some really cheap art supplies, among many other things. NAEIR offers official organizations access to thousands of brand new, high-quality products for a fraction of retail cost. NAEIR is a non-profit that takes in donations from corporations, and passes the savings on to groups that are dedicated to helping others.
Can you believe I bought all these rolls of Scotch Masking tape for just $5.50? The stock on the website changes often, but the prices are just amazing. I can’t wait to do some more cardboard craft and building projects with these!