Amazon offers the Colgate Extra Clean Toothbrush 3-Pack in Medium or Soft for $1.87 with free shipping via the instructions below. That's tied with our June mention and about a buck less than you'd expect to pay at your local store. To get this deal:
Walmart offers the Baby Banana Teething Toothbrush for Infants in Yellow, model no. BR003, for $5.07. Opt for in-store pickup to avoid the $4.97 shipping charge. That's the lowest price we could find by $6. It's made for infants up to 12 months.