peeler crab

hi lads
can anybody tell me the best way to get peeler crab to pop when you need them for a comp ?

if you get a sprayer bottle filled with saltwater and spray them they will take in the moisture and eventualy pop.

how ye
put crab into a bucket with some sea water in it. leave them outdoors or in a shed if ye have one. (Not in the sun light). They heat will bring the crab on in a day or so. change the water every day too if your doin this over a few days