Check out the free cake fundamentals class to see how to properly cut and add supports into your cakes!

I baked THREE 10" cake layers (in 2" deep tins)...or you could bake only two 10" cake layers but in 3" deep tins. Both will allow for 5 mini cakes, about 5"tall (or slightly taller).

Link to the paint brush inspiration photo at the exact size Shawna used for a 5" tall cake...
https://docs.google.com/document/d/1sVEe8vWj5BkTjijpkHp14GM5_zt_C-1UQ5rvL5MLWy8/edit?usp=sharing
Printing Photo Inspiration Images from Shawna's Google Docs Files:
To edit the document and change its size...

First, click on the Google Doc link that I've provided. You'll need to have a google account to complete the next steps, so if you want to print from these google docs I add, it's a good idea to setup a google account.
Ok, after you click on the link and the photo has opened in the document, click "file" in the upper left hand corner.
A menu drops down... then click on "make a copy". A box pops up where you can give the file a name and designate which folder in your google drive you'd like to save it to. It should then automatically open up that copied document for you.
You should be able to edit that document (you can only view the original that I posted.) Change size as needed and you can hit the print button when you're finished!