What are some unused items so far?

Read all the books and now I'm listening for the first time and thought there might be some items that haven't been fully used or not used at all so far. At least as far as I remember... I'm still on the first book listen but one item I can think of is Donut's scratch lottery ticket from a Lucky Bastard box. I think it hasn't been used yet? Carl's lottery ticket also hasnt been fully used right? What other items are out there still waiting to fulfill their destiny, if ever?