Kimberly,
We bought a small straw sippy with handles (Nuby brand) that worked well. Because the cup is small they don't have to suck for so long to get the lquid up and it is therefore easier. hth.
hugs, Tammy
OH, and the Gerber Sip&SMile 7oz ones are great bc the babes don't have to tip them up very much at all to get the liquid out, these are a success in our house!!
tammy