the everloop toothbrush is made with replaceable bamboo bristles
Colgate Link Replaceable Head Manual Toothbrush+ 2 Replacement Toothbrush Heads | eBay
Metal Toothbrush with Replaceable Bamboo Head | Eco-Sal| Eco Shop UK
ecoboom Bamboo Toothbrush Eco-friendly with Replaceable Heads for Biodegradable Soft Bamboo Charcoal Bristle, for Men, Women & Kids, Zero Waste Gift : Buy Online at Best Price in KSA - Souq is
Sea Differently Replaceable Head Eco-friendly Toothbrush — Francois Hurtaud Design
The Reusable Stainless Steel Toothbrush by Diseños IGSA — Kickstarter