I make balloon animals for a living. It's a fun job, but it's harder than it looks, but if I'm doing it right then it looks easy. It's a lot of standing and moving. I generally equate this to fishing while standing when figuring calories. My gig today should burn about 700 calories. It's not very cardio intensive, so I'll still have to get some of that in. Sometimes it amazes me just how many calories I burn with the balloons. It helps that I often do a lot of long jobs. Anything you do for 3+ hours will burn calories, especially if you do it with a 10lb weight strapped to your waist. If I do my job right, it's a lot of fun and I'm exhausted afterwards. Plus people spend a lot of time telling me how wonderful I am. It's a pretty good way to workout!!