1. You can try braining the pinks. (This means use a razor or knife to cut a slit in the head of the pink, squeeze out some brain and leave overnight in the cage)
2. Skin graft some gecko skin on to a pinky. (use a med or house gecko). Note: If you skin graft, you may also want to wash the pinky with very simple, unscented soap. This helps wash the pinky smell away.
3. Force feed with chicken or beef baby food.
4. Pinky pump. (difficult sometimes in my opinion)
5. You can try scenting with other lizards, utas, scelops, etc...
6. The bottom line, each snake is different. No magic tricks, just keep trying different stuff. Keep the humidity up a bit in the cage. This always seems to help.
Good Luck,
SXO792