My most normal nickname is Linz
In high school I had friends who would call me Tater (last name Taylor) and then that spread to Tater tot, Tater bean, Tater head, basically anything with Tater lol. I'm glad to be rid of that one
When I was little, my uncle used to call me Lily of the Valley, and I'm not really sure why! And my grandpa used to call me Smiley. It's my favorite memory of him (he passed away when I was 10). His favorite thing was cards and we'd play cards everytime we were together. I have the worst poker face and as soon as I'd get a good hand, my face would just light up so he'd always refer to me as "Smiley"