A new Graduation 2020 Limited Edition 1000 MagicBand is now out for sale at certain resorts at Walt Disney World. It features the character KnowsMore from the movie Ralph Breaks the Internet: Wreck-It Ralph 2. This band is $34.99. The SKU is 400918813332.
These MagicBands are not available directly from Disney online, but you can buy them from eBay online by clicking this link which will take you right to the product listings.