UMBUM innovative cardboard 3D puzzles. We design and manufacture models for assembly from paper and cardboard. From toys to accurate-to-scale architecture more than 700 SKUs are available for sale and customization. UMBUM is a series of sustainable paper models produced by a team of creative professionals including designers, artists and engineers. UMBUM 3D puzzles are assembled effortlessly using pre-cut pieces, without the use of glue or scissors. Once completed, these models create unique decorations and offer endless creative play possibilities.