Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2657612.
Kudos to Yagokun for his original "Baby Tooth Smile" (http://www.thingiverse.com/thing:2058973) and the remix by Cyborgdaron.
For this remix, I've added 4 angled holes large enough to fit good sized brushes and a drain system.
Model size is about 5" tall and 3.25" wide. Takes about 11 hours to print on my CR-10.
Forgive the pimples on my first print, was having some issues with Simplyfy3D... actual model is very smooth.
** EDIT 05/24/18 **
Added another version that has a simple curved partition to allow both brushes and a toothpaste tube. Thanks to TheTWIGS for printing that version to test. See his make for a photo: https://www.thingiverse.com/make:494830
** EDIT 11/19/17 **
Print it smaller and you have a nice pen/pencil holder. :)
Enjoy!