Finally - a coffee mug that's actually FUN! This Build-On Brick mug lets you customize your drinkware with building blocks, turning ordinary coffee breaks into creative sessions. Made from BPA-free plastic, this 16-ounce mug is completely safe for drinks and comes with 3 random packs of bricks to get you started. The best part? It's compatible with most major building block brands, so you can raid your existing collection to create truly unique designs. Imagine sipping your morning coffee from a mug you designed yourself - how cool is that? But it's not just for coffee - use it as a pen holder at work, a decorative piece in your home, or even as a small vase. The building surface covers the entire exterior, giving you endless customization options. For kids, it encourages creativity and problem-solving skills (adult supervision recommended for under 3 years). For adults, it's an amazing stress-reliever - there's something therapeutic about snapping bricks together while sipping your favorite beverage. The mug measures 3.7x4.7x5.1 inches - perfect for standard drink sizes. Just remember: hand wash only (no dishwashers or microwaves) to keep your creations intact. This makes an absolutely perfect gift for builders of all ages - birthdays, holidays, Father's Day, you name it. It's functional, creative, and just downright cool. Who says adults can't play with building blocks?