Wee Doo Dolls are magical voodoo dolls that Timmy Turner wished up.
Wee Doo dolls are almost like voodoo dolls and you doo dolls, however it can be pulled, squished and spun. Wee Doo dolls are very dangerous like voodoo dolls and you doo dolls.
In the episode "Wee Doo" when Timmy was bored at recess he told Wanda to wish up a bunch of wee doo dolls for fun. Wanda warned Timmy that wee doo dolls could be very dangerous and fairies don't use them anymore.
Wee Doo dolls can be seen for different characters, these are all of them