I guess a photo is in order

The black is where from I tried using shoe dye. That did not work well at all, kept rubbing off. Luckily rubbing alcohol removes it easily. This are probably the cheapest grips they could find to put on the bike, now no one seems to make one like it. They are about 3.75 inches long and fit a 7/8 inch bar. The closest thing I have been able to find are copy of old Schwinn grips with the finger bumps (Pyramid). I can use those if I have to but, I want something just like these only black.

A comment to the air compressor suggestions, not a good idea with grips as old as these, it will just blow the ends out. If I want to destroy them a box knife will get them off no problem at all.