as a kid, ilon, which is a silly version of my name, skeleton but in my mother language slang since im underweight back then (not anymore tho, wish i still am, being chubby even though its healthy is not fun)
as a teen, fiq (litarally my name but shortened) and ily or li, random name but when i tell them that ily is "i love you" they kind of just accept that and think its fitting which is sweet tbh