Rokkaku is a good if you need hexagons. At first glance, it appears that many are the same but there are subtle differences to most. I have typed "a b c" on the cutting mat and display it in three cutting styles. Shadow style changes the shapes significantly which is like doubling your shape library.
One thing to note: Use the most complex shapes only if you have stretched them quite large because your Cricut will attempt to cut even the closest lines.
Click here to download Rokkaku
Click here to download Rokkaku Legend
Courtesy Luc Devroye