As various past boyfriends will testify in somewhat different circumstances, I have quite a strong gag reflex but no problem taking Warfarin pills or indeed any others. Have you considered (or tried) taking the pills with a flavoured drink you like, instead of with water?
Personally, I'm not a fan of this idea - dissolving the pill in ANY drink. I feel safer just taking the pill (and you CAN put it into a capsule and swallow the capsule). I think I'd feel safer having my stomach acids and any water in my stomach dissolve the pill than I would having only water (or gin, or juice) dissolve it before I put it into my stomach.Gin and tonic with a leaf of mint?