First balloon is a fully paid off three or four bedroom house in a good school district.
Second balloon is a decent little nest egg.
Third balloon is plane tickets and hotel keys for a two month world vacation.

I failed the box challenge. Let's see...In the small balloon is self-confidence because I just need a little. In the medium balloon is awareness since I seem to be oblivious to all but the most obvious things happening around me. The large balloon would contain wisdom. You can never have too much of that.

I got a sharp pin and is hungry for rubber. All I wanted were 3 balloons... you can go now.

A full nights sleep, peace of mind, world peace. I don't care which balloon has which, but the sleep better get here soon!

Small: Companionship (one partner or maybe up to a dozen really close friends)
Medium: Health (in the larger balloon so that I will have more of it)
Large: Love (in the largest balloon because I want to share it with the world!)

Patience, insight, and persuasion. Odd how this one seemed so much easier than the boxes.

Are inert gasses intangible enough? If so, nitrous oxide in all three please. If not; Ill take world peace in the large, prosperity for the hungry in the medium, and a bit more charisma/confidence for myself in the small.

I really don't like balloons.

Nitrous oxide for laughs in the small. Sulfur dioxide in the medium to nausiate the laughing fools from the small. And hope in the large that it is not in my house in case someone vomits.