In Moscow, there are lots of giveaways, especially in summer. Generally there are balloon giveaways. Balloons are blown up with pump and are usually underinflated and soft. But if it is a school event, balloons are being inflated to the max by mouth.
When I was in Sochi, Russian seaside city, there were lots of giveaways of advertising beachballs. Generally hotel adverts. Most of beachballs were inflated by pump to their normal 20 inch size, but one of the hotels did a giveaway of mouth inflated beachballs. They were clear, printed with logo of the hotel. Some young girls (12-13 y.o.) were inflating them by their mouth. Due to warmth and moisture of their breath beachballs were huge. Like 24 inch or bigger. And they were rock hard.
So, do you have giveaways in your place? If yes, which inflatable things are usually being given away? And, of course, how these things are inflated? Mouth or pump?