I use those tiny coloured scruhchie type..they stay in, and so easy to put in and take out compared to elastics. You can get them at the dollar stores also. My yorkies are so much happier since I starting using them..
I do buy fancy bows on ebay, but for every day I use the other..Mine are all too young and take the pretty expensive bows out of each others hair, and then they wreck them..
Give them a try.
pooh's mum