Most professional manufacturers on Made-in-China.com offer extensive customization. This includes bespoke shapes (3D molds), custom scent profiles, and the addition of surprises inside (like toys or jewelry). For branding, you can choose between custom-printed boxes, biodegradable wraps, or private labeling. Ensure the supplier can provide Pantone color matching for the fizzers to align with your brand identity, and confirm the MOQ for custom molds, which usually ranges from 1,000 to 5,000 units.