The bunny is adorable,very good for a first pattern!
If your bag is round, you might envision a beach ball and make a lining out of that shape. MMmm, I know what I mean, does it make sense? You would either need a sewing machine, or a friend who has one. You could also look around, say at Walmart, for a bag to fit inside that one, and just tack it in. I've done that on occasion.
I LOVE THIS SITE!
"All good things and every perfect gift is from above, coming down from the Father of Lights who cannot change."