Boots of Speed are an all-timer as far as magic items go. You click your heels, and then you go fast. Sometimes there is a limitation, sometimes there isn’t. In 5e, the boots double your walking speed, and you act as if you have used the Disengage action all of the time. This lasts for ten total minutes throughout the course of a day, at which time you can’t use them again until you complete a long rest. You can hand them off to someone else who can attune them and then they could use them, I guess. That seems legitimately nuts. Man, I won’t be handing those out! Anyway, what if they didn’t make you fast…but instead made you greedy.
Boots of Greed
Wondrous item, rare (requires attunement)
While you wear these boots, you can use a bonus action and click the boots’ heels together. If you do, the boots increase your walking speed by 10 feet. If you click your heels together again, you end the effect.
Curse. These boots are cursed, a fact that is revealed only when an identify spell is cast on the boots or you attune to them. Attuning to these boots curses you until you are targeted with a remove curse spell or similar magic; removing the boots fails to end the curse. While cursed, you must pass a DC 15 Wisdom saving throw or attempt obtain any coins, precious gems, or magical items you encounter that does not have an obvious owner. You may do this through force, persuasion, sleight of hand, or other methods as you see fit – though you must immediately attempt to possess the wealth in question.