Hmmm ... you could get either two 10 lb bags of quarters, or 5 whole chickens (at about 3-4 lbs each).

By the way, dogs tend to puke and get diarreah at the most inopportune times, like in the middle of the night. So if she sleeps with you, your mom would never even have to know. If Lily is vomiting (and I mean once a night, not multiple times a night), just clean it up and keep it a secret