YES! There really are Doctor Who nesting dolls or matryoshkas!
They come in two sets, one for Doctors 1-6 and the second set is Doctors 7-12. Obliviously, this leave out the War Doctor, and they were in production and for sale long before the announcement of lucky Thirteen. However, since this makes an equal addition, together, this might mean new sets of seven and seven could be produced later.
I purchased mine through popcultcha.com.au.
If you do not like the minimalist design there are more detailed sets available on Etsy or example for you to copy on blogs. The set shown here runs $799.00. Since I have no artistic ability, and I enjoy eating, I settled for the preproduced versions which were $16 a set.