Snack Ball, made by Boon and sold on Land of Nod, is pretty dang cute. And just $6.49.
While marketed for little people, a lot of big people could use this, too. Throw it in your bag for a snack on the run. It would coordinate well with the banana carrier; add a half-pint of milk and you’d have a portable breakfast.
I’m generally anti-plastic but at least this plastic is BPA-free.