Build some vice pads to clamp delicate items.
Step 1: Measure
Measure the vice and mark two lengths of wood to accommodate.
Step 2: Cut
Saw the wood to the appropriate size.
Step 3: Mark Drill Holes
Mark the pieces of wood to drill holes for magnets.
Step 4: Drill
Drill the holes deep enough that the magnets are flush with the wood surface.
Step 5: Glue
Glue the magnets in place.
Step 6: Cut Rubber
Cut some gasket rubber to the size of the wood blocks. Tooling leather would also work well for this purpose.
Step 7: Glue
Epoxy the rubber pieces to the wood.
Step 8: Complete
Attach the pads to the vice.