miracle fruit (pills), sour stuff (lemons, limes, grapefruit, rhubarb, …) or whatever you want to try
Here’s a weird one for you. We attended a night organised by a fellow student recently during which we tried ‘miracle fruit’. This is a berry from West Africa which increases the perceived sweetness of foods (effects last for around half an hour)
During this trip we ate numerous lemons (which tasted like delicious lemonade) limes and other things such as rhubarb (which tasted like a sweetie) and tomatoes which were just plain wrong (imagine tomatoes turned into something for desert).
We were pretty dubious before going along but it was really unusual and interesting way to spend a Monday night!