i have! also used red hots,and the smaller jawbreaker types,also dry lentils and peas,now i got a bunch of clays,but candy is good 
Gobstoppers may be perfect for small slingshots that I normally shoot BB's with, they would be easy to see fly and OK for close range stuff .. I should check on them. Thank you for the heads up ;- )Where marbles, steel or led would be to risky to shoot, I always keep a box of 'Gobstoppers' , (small, round jaw-breaker candy),handy for shooting in "sensitive areas". They're my ammo of choice for those - I 'just-gotta-shoot!' situations, where I need to keep it safe and on the down-low. I also use them to 'soft-shoot' pests and unwanted cats in the back yard. But have no doubt, if you do a full draw with them, they can kill.
I usually pick some up at the dollar-store when I go. They are right at a 1/2" in size and come in bright colors just like in your picture.
Those are the ones,lolWhere marbles, steel or led would be to risky to shoot, I always keep a box of 'Gobstoppers' , (small, round jaw-breaker candy),handy for shooting in "sensitive areas". They're my ammo of choice for those - I 'just-gotta-shoot!' situations, where I need to keep it safe and on the down-low. I also use them to 'soft-shoot' pests and unwanted cats in the back yard. But have no doubt, if you do a full draw with them, they can kill.
I usually pick some up at the dollar-store when I go. They are right at a 1/2" in size and come in bright colors just like in your picture.