Theo Chocolate says National Ice Cream Sandwich Day is today. (Google disagrees, but so what? I’m hungry.) And the shop has other reasons to celebrate: It’s welcoming new neighbor Bluebird Microcreamery (a few blocks east at 3515 Fremont Ave. N., next to the Dubliner), which has long used Theo’s sweet, organic product in its Theo Chocolate Chunk flavor at its original Capitol Hill shop. Today their collaboration goes further: Bluebird will be on-site at Theo, providing the cold stuff for the ice cream sandwiches. As for the two sandwiching pieces, Theo’s going to baking three types of cookies—double chocolate espresso, snickerdoodle, and vegan quinoa chocolate chunk (also gluten-free, this being Fremont and all). Klondike bars these are not. You won’t ever find such fancy, gourmet treats in the 7-Eleven freezer section. These one-off concoctions are only being created this afternoon, and the anticipation is melting me. ERIN K. THOMPSON

Thu., Aug. 25, 3-7 p.m., 2011