I can say I have heard this from native speakers, but I can't pull up any YouTube links right now. I suspect I've heard it from people who don't always go by the spelling pronunciation, in the same way many people who insert a T sound into often don't always do so. (I include myself in the "variable often" group.)

For what it's worth the Oxford English Dictionary lists /ˈtɔːtɔɪs/ ("TAW-toice") and /'tɔːtɔɪz/ ("TAW-toiz") as alternate pronunciations in British English. This appears to be the result of a revision made to the entry sometime after 1989. (The public-facing revision history is not very precise.)