birthday card cousin

Celebrate your first friend and lifelong partner in crime! The 'Birthday Lab' presents a curated collection for every kind of cousin—from the one you grew up with to the one you only see at family reunions. Featuring a mix of trendy, funny, and heartwarming designs, our cards are fully customizable. Add their name, a shared childhood memory, or a favorite photo to create a unique birthday keepsake that honors your special family bond.