Kinda depend how much lemon Life gave you. If it's one, maybe make a glass of lemonade with sugary syrup and salted dried sour plum. Add the dried plum into 1/10 mug of hot water, stir for a few second, add in the lemon juice and some ice, then fill it up with water and you got a glass of refreshing lemonade.
If it's a few, maybe you can make lemon pound cake or lemon cheese cake instead.