Upgraded ripper for 42131, using few small parts and 42157 claw pieces:
https://rebrickable.com/mocs/MOC-183436/M_longer/42131-upgraded-ripper/#parts
The goal was to improve the original, to have better looking ripper, but with adding as little as possible of additional parts.
You need only 14 additional parts, and you will be left with few pieces in hand from original ripper:
It does lower below the ground level, but as we know 42131 barely works, so that’s just a symbolic upgrade 😉