rubber tires, either to remove the seam or just give the tires a worn look. freeze the tires. put them in your freezer over night and then sand them in the morning while still frozen. freezing makes the rubber hard and easier to sand. i will definitely try this on my next model build. spice, but without so much sweetness. i think they would be good as a dessert, maybe warmed with some ice cream on top? they are improved if you butter them as you eat them. i'm sure people who love cake will like these. they were really fun to make! 