Amazon.com: Apostrophe Games Guitar & Violin Building Block Sets - Musical Instruments, 422 Pieces - Compatible with The Major Brand Building Bricks : Toys & Games
RJR Perfect Pitch II Violin Block Square Black Brown Gray Cream 11" x 11" | eBay
Violin build-along
Lower Block Clamp for violin/viola
Common neck-block. - The Pegbox - Maestronet Forums