Induction Charging

I am working on a connected toy and want to build a prototype with induction charging. Size is an important factor (trying to keep things very small) and my circuit is operating at 3.3V.

Does anyone have any advice on how to approach this?

I have found a few custom approaches to this problem, but I am hoping there is some off the shelf components.

An other custom approach;-

Ebay

rf-inductive-charging-evaluation-kit

digikey,49.95