Check out this Sonicare for Kids Bluetooth Connected Rechargeable Toothbrush that you can get for just $29.95 (reg. $49.99) at Amazon. The sale price is $39.95, but there is a $10 coupon on the product page that will make the final price $29.95. I am not sure how long this sale and coupon will be available, so buy yours now if interested.
Here’s the link to the product: