Finsugi is a fusion of jewelry and a finger prosthesis. Finsugi is a fully functional dynamic prosthesis for people with one or two missing phalanges. The used mechanism helps simple daily tasks such as grabbing objects and typing. Finsugi is a public benefit nonprofit design. There is no design cost, the applicant pays only the manufacturing costs directly to third-party 3d printing services. since the manufacturing process is based on digital fabrication and DIY assembling, the cost of the prosthesis is considerably much lower with respect to any other prosthetic of the same class. Due to the advanced parametric modeling used, Finsugi is available much faster than other customized prostheses. It also is completely recyclable, developable and customizable. It's environment-friendly, stylish and very affordable.