You can use vegetable oil, reduce the liquid in the recipe by about a teaspoon. Do not use olive oil, it will change the taste. You could possible use butter, but I can't remember the substitution amount.
Troll. A previous question about your newborn twins.
http://answers.yahoo.com/question/index;_ylt=AuzclTXgWGkCS6n3cKsSsv_sy6IX;_ylv=3?qid=20110720205911AATV2Tl
Ask for a cheap pre paid phone like a Net 10 or a Trac phone, you can get one for $10-15. And add minutes as needed, it will work quite well for the reasons you list.
Hot glue on the shoes should work ok, for the boas, I'd go with three or four safety pins on each or sewing them to the fabric, I don't think hot glue would hold up to dancing.