A Swiss Army knife is a handy add-on to a keychain, but an Instructables author, Vitizop decided to go one step further.
The Utili-Key 10-in-1 Tool has the following:
1. Phillips screwdriver lite (pc cover diassembly) 2. saw (wood) 3. bottle opener (beer) 4. rope cutter (nylon, cotton ….) 5. screwdriver 6. hexagonal key (exp: Phillips screwdriver plugins) 7. knife sharpener 8. wire cutter (copper, paperclip) 9. nail 10. nail file + 11. magnetic (old winchester magnet over pull up) 12. can opener (not elegant) 1st saw tooth
The user also notes that he or she is working on adding a knife feature to the key. Clever, minimalistic and highly practical — we approve.