bakingbunty I could have written your post! I was actually going to post something similar! 
DD is 12 months now too and won't take a bottle or beaker of any milk. She will have water though, but only out of a certain beaker after testing about a thousand of them
I've tried cows milk, breast milk and combination of both. I was going to try goats milk and soy milk or similar - just to see if it is the taste
I think I'll be flogging at dead horse though! Have you tried them? or anyone else?
I'm of the camp that if baby is hungry, they'll ask in their own way. I know my DD would happily take more solid food if she's hungry and I'm not around. This has happened only recently when I was late back from a meal out with a friend, DP gave her some weetabix as she refused milk. She took a few gulps of water and settled in to him waiting for me. I've also been out and about before now and it hasn't been appropriate for me to nurse (in a car driving!) so I've given her a banana and she's wolfed it down!
Obviously a baby weaning off breast milk ties in to them increasing solids and eventually them eating enough to not want breastmilk any more.
DD has decreased a little in the last 6 weeks but I still think we're a long way off weaning. She still feeds morning, early afternoon (3pm), bedtime and late evening 11pm. We started night weaning the other week (have a separate thread on it) and are following a very gentle method which is slow and still involves lots of cuddles, just not nursing her to sleep!! We've had instant results with regards to the sleep and milk intake on waking and at bed time has been more 'meaningful' if that's the right word. She almost knows I won't feed her at night so takes more at bedtime and 11pm and seems ravenous on waking in the morning!
I hope my post makes sense, just thought I'd share our experience. It sounds like we have a similar job too with travelling. I take DD with me and work out childcare the other end! (job is v flexible though!)