I play guitar about as well as I can eat chinese food with chopsticks, but..
Here:
http://www.olga.net/I tried a few items on olga.net. had mixed results. for example, entering
i me mine
and hitting enter (search) brought up no results. Hello? It's a beatles tune, for cryin'.
hammer to fall got nothing either (queen!)
The fact that it failed to find "breathing" by kate bush is a little easier to understand.
http://www.ultimate-guitar.com/also couldn't find 'i me mine'. what, did i dream this song? Finally i broke down and entered 'beatles' and of course got a big ol' list, pages long. Lo and behold: "i me mine" isn't even on the list! I guess no one ever uploaded a tab transcription. ah well.
http://www.guitaretab.com/well, they spelled guitar funny. or maybe that's supposed to be "guitar eTab" like "eMail".
http://www.guitartabs.net/this looked promising, but every single link I used created this "enter this contest!" popup. drove me freakin' crazy. Also seemed to have the same search results as the others.
(I think they're all using the same database! That's what I think!)
http://www.tabrobot.com/Success! 'i me mine' turned up not one, but over five hits from this source! However, I did have to do a fair bit of clicking-through to get to one. (and they're not always tablature: sometimes are just written chords with the lyrics. but better than nothing!)
I'm not sure how you plan to make this work, Sparta, but these might be places to start.
Cheers,
-pet