I think a full grown mouse would be pushing it, not to say the Tokay wouldn't try. I've seen them shred large pinkies and rat pinkies into pieces shaken them. I once had a small baby snatch a rat pinkie from a adult and although it took awhile it managed to swallow the whole thing, it was very proud of it's catch and carried it around for awhile. The baby did survive that ordeal.
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My posts and replies are my experiences only
1.2.15 Tokays
1.4.10 Leos(13 albino)
1.2.0 AFT's(amel male)
0.2.0 Stenodactylus Petrii(Dune Geckos)