Can someone please tell me what size cakes to bake to get this affect.

here is picture

The picture didn't show up

I know I can get it to attach.

Can you just give us a link to the picture?

http://cakecentral.com//gallery/2012632 here it is (I hope)

As with any other cake, size will depend on how many servings you expect to get out of it. As for how to achieve that look; its just a single tier of a topsy turvy for which there are a multitude of instructions from which to choose.

http://www.google.ca/#hl=en&cp=18&gs_id=1p&xhr=t&q=topsy+turvy+cake+instructions&pf=p&sclient=psy-ab&rlz=1R2GFRD_en&source=hp&pbx=1&oq=topsy+turvy+cake+i&aq=0&aqi=g4&aql=&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=c5e4e78ae97fc2c5&biw=886&bih=532

The size you use depends on the servings you need. Pictures can be deceptive and not show you the true size so it's anyones guess how big that is. I would personally carve down from, for example, a 10" down to a 7" or 6" to get the gradient. As I said though, it depends how many you're feeding.

I have those alphabet tappets and based on their size, I would say that that cake is an 8". I know that doesn't help you, because you need to figure out what size cake you need to serve your guests. To make that cake I would bake three 8" then carve it from there.

i really don't have an exact number of people, I just want it to look good. It is for a family member. I was thinking 2 10's and a 9. What do you think??

Such a fun cake!

I will use 8, 9 and 10 in cake if you don't care about # of servings

ive just done a single tier wonky cake and baked 2 9inch rounds, each cake was cut in half and buttercream. I stacked it all together and then carved it into shape. For the slant on the top i always cut the top to the angle i want it then flip it over so im not wasting any cake and it gives more depth.