animal costumes

DD has a party to go to in 2 weeks and she has to go as a animal.
does anyone have any ideas on how to make a easy animal costume?
i had a look on ebay but they are all for 3 to 5 sizes.
DD is 15months but tall for her age so i am lookin around 2y sizing so alteast we might get some more wear out of it. or somethign that i could put together myself that wont look to bad.

theres a cow costume on the moogoo website that absolutely gorgeous!!!
or u could buy a an animal print mcn and some matching babylegs with an animal print top?? that way all things are reusable without waiting for another animal party to come about?

I have a AWW children's costumes how-to book, with some fairly easy things in it.

I could mail it to you and you could mail it back when you are done with it, or I could scan some pages for you, and copy the patterns and post them to you if you need them.

Animal costumes in it include: rainbow lorikeet, cat, rabbit, lion's head, poodle, and a bumble bee (cute!) which is shown in toddler size.

I have seen them at aldi fairly cheap if you dont want to make one, or spotlight

Oh what a shame i was about to say i would gladly post you my DD's Tiger costume but it's a size 3-4 (yeh sadly too big for your lil' one) !!

the aldi ones just went off.
my mum is gonna buy her one at a shop near us on the weekend (spoilt lol)
thanks guys for the ideas