First, welcome to BB! I'd love to see pics of Molly and hear more about her. You should feel free to head over to the welcome thread and introduce yourself and your bun!
What kind of personality does Molly have? Does she like to chew, throw, dig? http://budgetbunny.ca/category/rabbit-toys/
<---this site give you some great ideas for homemade bunny toys that are either free or no more than 5.00.
Cardboard never fails, I swear. Give your bunny a nice big box with a few holes for entering and exiting and let her go to work "constructing" it. The most popular toys in my house are toilet paper rolls, sometimes whole, sometimes cut up into a ball with a treat inside. Get creative. I just recently made a toy in which I took an old box Cinnabun had completely destroyed, cut the entire box up into long strips, punched holes through the middle these strips, then ran some twine through the center and made a cute cardboard toss/chew toy. She loves it! Some other staples include a phone book which can be shredded. Or a digging box: take a good size box and put in lots of shredded newspaper. The digging instinct will kick in.
Hope that helps!