In addition to the chips already posted, here are a couple more:

Antique chips (engraved) all in Dale Seymour's book:
Owl on a branch (several types)
Three owls on a branch
Kissing owls
Boy and owl
Moon and owl

From casinos:
Owl Club, Battle Mountain, NV $5 Owl is wearing a cowboy hat
Trump Marina, AC Hooters chip with lenticular eyes. I have a $25 but I think there may be a $5
Stardancer, Little River, SC $5 Chipco

Those are the ones that I have but there are a couple I'm hoping to get someday:
University Club, Birmingham, AL crest and seal
I think the Trump marina is planning on coming out with new Hooters chip but I don't know when.