OMG, jtowntoflorida, that is hilarious!

Don't feel bad - I am sure we looked poor too, what with me telling my son that he couldn't have this toy or that light-up doodad (because he already has too many toys and gadgets at home, but no one at WDFW knows that). And using a cheap-o umbrella stroller instead of a MacLaren or a BOB. I guess we wouldn't have been considered for a porcelain doll, though, since my kids are both boys.
As a mom of little ones, I think it is fine to offer something to my kids, but agree you should check with me first. If my older DS is in a full-blown meltdown, I don't want to "reward" him with stickers or balloons in order to get him to quiet down. But if you are checking out of the resort and want to give my boys your Mickey head balloons and the boys are being good (or at least as good as small boys can be), the that is a really sweet and appreciated gesture that they would enjoy.
I bring a few tubes of glow sticks for evenings and have handed them out to other kids. I figure they only last for so long anyway, so I am not giving some "useless" Dollar Store junk. And I always have those little packets from the Target dollar spot with a coloring book, crayons and stickers in my bag - I have given out one or two of those to other families in restaurants to keep their kids occupied til the food came (I asked the parents first). We are trying pin trading this time, and if someone wanted to give my DS and extra pin, I wouldn't turn them down.

Food is probably an iffy thing because of allergies, and maybe I am naïve, but if someone wanted to give my DS a sealed piece of candy, I would probably allow it.
I also offer to take pictures for families, and have let people go in front of me in the restroom if they have kids doing the potty dance. Or if Mom is doing the potty dance. Holding doors, having my boys sit on my lap to free up a seta in a crowded bus, eating and skedaddling in a busy CS restaurant so someone else can have the table. Just basic, polite gestures.
I remember once when I was very young, an older woman in a wheelchair invited my sister and I to sit on the curb in front of her in the handicapped section to get a good view of MSEP. Nearly 30 years later I still remember that, and appreciate how kind she was. She became our adopted grandma for an hour or so, and she made our night. Things like that really stick with people.