I have gone to Def Leppard and Journey ILAA 5 star and 4 star several times. Some of things they gave away in the gift bag were:
Beach Towel with Journey monogramed on it
Tote Bag (I had the whole band sign it
8x10 Band picture
25% coupon for Journey store
Black leather monogramed picture frame with band picture
25% coupon for Def Leppard store
I know there were some other items but that's all I remember right now.
I would love to have a signed band photo, drumsticks, guitar pick, and a tour book the most but I always like to be surprised!