Free custard at Culvers Thursday

Culver's (FM2499 at FM3040, near Chili's) is advertising free custard tomorrow, Thursday June 21. I saw their ad emblazoned on the baggie that my Star-Telegram came in this morning. No strings, no buy-one-get-one-free, just free custard. If you haven't been to Culver's, they have a wide variety of food on their menu, including their signature custard (think soft-serve ice cream). They have two house flavors (vanilla is one, is chocolate the other?) and then they run a flavor-of-the-day, which is always advertised on their electronic marquee on FM3040.