First Id like to say thanks to all the people who gave their ideas on this site. I made this My Little Pony birthday cake after looking at your lovely cakes for my niece Ellie on her 3rd birthday.
I used two round Madeira cakes one on top the other for the body and legs. I found a colouring picture of a MLP and used this as a basis for my design. I cut the cake into the shape required for the body and the legs. I covered the pony body with white fondant icing (my children don’t like marzipan).
For the head I bought a dummy polystyrene oval and carved it into the head shape using my husband’s penknife (it was actually easier than it sounds). I covered this with white fondant icing leaving the ragged ends to be used for the neck. I put 3 dowels into the Madeira cake and then carefully slid the head on. I then used various shades of purple, lilac, silver, white icing to make the mane and tail, by rolling into long thin sausages. I used food colouring to paint the eyes, ears and mouth. I also used it to paint the heart on the leg and the rose on the back. Flowers were made from fondant. My niece was very happy as she loves anything with purple.