That sound is your wallet having a heart attack. Legos aren’t cheap, but if there’s a kid or adult in your life who loves them, then you know how priceless the joy the bricks bring can be.

This weekend at Florida State Fairgrounds, in conjunction with Tampa’s Glazer Children’s Museum, Brick Fan Fest brings together 10 vendors from across the country, and nearly a dozen special guests—including stars from “Lego Masters” and master builders like Dan Steininger—plus interactive stations, Duplo zones for the youngest builders, competitions and more.

Tickets for Brick Fan Fest: A Lego Fan Event happening Saturday-Sunday, Aug. 19-20 at Tampa’s Florida State Fairgrounds start at $20.