In addition to the usual Anniversary Festival items, you can get some other useful items. Anfalas Star-lit Crystals cost 40 Anniversary Tokens and are Bind on Acquire, so they must be bartered by the character that will use them. Essence Reclamation Scrolls cost 60 Anniversary Tokens and are not bound, so can be sold, passed or traded, e.g., by a lower level character. (There are no dyes available for barter during the Anniversary Festival.)
Because the Inn League and Ale Association are not active during the Anniversary Festival, you can't do my favorite trick of using drink delivery quests to generate lots of tokens. However, if you generate enough tokens and are in need of either crystals or scrolls, they are available.