I run surveys at my other site all the time to see what people want and need and sometimes I get some really misguided workout requests that just blow my mind and make me want to go on a rant.
The request was more
Kettlebell Workouts and more bosu workouts? My answer is why?
If you're that into KB you must know that most women don't like KB workouts that much and all my sites cater primarily to women. There's also a limited number of movement patterns with KB (or with exercise in general) and once you figure them out you can invent your own exercises. Doesn't take a genius to do that. It's natural progression.
As far as bosu goes, it's great for a few things but
Dyna Discs are much more practical, a fraction of the cost, take up a lot less space and weigh less too. The bosu is the least used piece of equipment in any gym. Just ask any good trainer.