Determine the cost of owning the ice cream maker per year. For some people, owning something costs nothing and in fact provides value, they find comfort in owning things, used or not. For some people, owning things is a burden, a drain, and owning something unused is painful.
An ice cream maker costs maybe $200? How would you feel if you disposed of the ice cream maker and then a week later realized you wanted it?
If you want to soften the blow, don’t throw things away: give them away to someone who will use them.
I hate owning things, owning an ice cream maker that I never use would weigh on me and I would much rather spend $200 on a new ice cream maker every 5 years (that I give away after a month) than have an unused ice cream maker for 5 years.