First, congrats on getting your license!
I have a 5 mo. old who is the same way! It takes forever for her to drink a bottle! She was in the NICU for a while and is catching up.
I usually do the sensory table thing. I put a huge blanket under it so everything goes on the blanket and I sit right by them while I feed the baby. I have 4 that are 2.5 and under (not including baby) and this works fabulously! I also have a playroom that is gated off so it makes it a little easier to let them play in a smaller space and I can sit in the vicinity of the children.
I like Cat Herders suggestion too. I do this sometimes, but my kids only sit for a little block of time.