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Ikea Trofast Bins Under Window: We use these to house manipulatives for busy pre-schoolers. Some of our favorites are Magna-Tiles, play food, and stacking pegs. I rotate these toys once in awhile to prevent boredom, but I went ahead and labeled them anyway as many of our favorites tend to stay in rotation.
LEGO Table from IKEA. The bins (also from IKEA) are made to slide into all the nice slots. The table top is made from a 5' x 5' piece of baltic birch plywood cut to 4' 8". I rounded the corners of the top, routed 1/8" edge, and sanded it using an orbital sander. spray paint which matched the blue LEGO color exactly, and then a clear coat) bought from Home Depot.