Two things that worked for me in the past are.
1. Get a cheap coffee bean grinder. Grind up a frozen anole with a quarter cup of water. First try rolling the pinky in the juice/soup alive if that works freeze off the soup in small portions as you might need to do this a couple times before they go to unscented. If that fails freeze some pinkies in the soup the pinky will absorb more of the juice this way, when it's thawed it will smell more like an anole and be cool (don't atempt to feed the pinky frozen) like a cold blooded anole would be.
2. If you try everything everyone has suggested and nothing works. Your last attempt can be force feeding it mouse tails. Cut the tail off a frozen mouse then the tip of the tail, let it thaw, use a little veggie oil to lube it and slide the tail down it's throat. Use something blunt to get the whole tail just into the throat so it doesn't bring it back up. Do this 2 to 3 times a week and the snake will actually gain some weight and size.
WARNING, watch the snake the next 2 days. It might get the tail stuck in it's throat trying to regurge.
Keep offering live or frozen unscented. Some snakes will take to unscented after just a few scented pinks or mouse tails.
Last resort, the tails will keep the snake alive and put some weight and size on it. Enough that you can put it into a short 3-4 week cooling off period.
100 percent of the snakes I forced fed tails to, came out of the cooling period eating live unscented with no problems and later moving on to unscented F/T.
I bought a lot of non eaters (nelsonsi, E. chain's, and a few of my own lavender floridana and mole kings) last year just to experimented on. The only snakes that didn't make it were the ones I didn't cool off.
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