More 49+ Kids Acoustic Guitar Strap. The top countries of supplier is china, from which the percentage. The most common kids guitar strap material is cotton. 584 kids guitar strap products are offered for sale by suppliers on alibaba.com, of which stringed instruments parts & accessories accounts for 1 there are 32 suppliers who sells kids guitar strap on alibaba.com, mainly located in asia. There are 1900 kids guitar strap for sale on etsy, and they cost $35.