Am makn this puppie cake for my nephew he's turning one..... I wud love to know if anyone has gone abt makingsumthing like this n have instructions...also on making the plaid on the bow n heart plzzzzzz thnk u so much

What a cute cake! Im sure who ever made this just carved it in 6 pieces. Then covered it in fondant.

I can't help with that exact one but I made a similar one and would be glad to tell you how
http://cakecentral.com/gallery/1285662/cute-pup
When is the little one's actual b'day - when do you need it finished?

For the plaid, I would use a plaid stencil
culinarystencils.com
You simply place the stencil on the fondant and paint. First stencil is vertical, then horizontal. Of course you can do it with stripes you do by hand, but plaid looks much better done with a very crisp edge. Use coloring that is a bit diluted (not solid) It's the second stripe that makes the pattern come alive as it deepens where it covers the first set of stripes.

for the plaid - an edible image sugar sheet is easier

Michal's, Wal-Mart, and cake supply stores

I believe this is what you are looking for. The site has a number of different carved dog cakes.
http://www.lovelytutorials.com/forum/showthread.php?t=4116