These remind me of "fruit by the foot" or fruit snacks. I have used all different types of jello. I love orange jello with this recipe because the mix with the marshmallows reminds me of a Orange Creamsicle.
QUICK TIP: Trying to cut the pinwheel once it's rolled can be difficult with a knife. You can use dental floss to cut these and they turn out perfect every time.
TIPS FOR REMOVING THE JELLO: You may want to dip a butter knife in hot water and run in around the sides of the pan to loosen it. Also after loosening up the sides you can also roll the jello into a roll in the pan if you are having trouble getting it out.