One could be Dorothy from The Wizard of Oz and the other could be the Scarecrow, Tin Man or Cowardly Lion. The dog, of course, would be Dorothy's dog, Toto.
Any classic costume with a feminine twist on it, such as 'Little Miss Riding Hood Gone Bad'...
a m&m
Halloween Costume Ideas for Men Women and Kids. Pumpkin carving tips, Safety tips, Sexy couples Ideas, Halloween Foods http://halloween-costume-ideas-2013.blogspot.com/
Cats/kittens there cute and a goddess YEP
a monkey
You can get some creative costume ideas at http://costumeideazone.com/. You can also get some ideas at http://www.indigo.org/halloween/page2.html
http://www.halloween.com/halloween-costume-quick-ideas.php
Go to these sites to get your creative side in gear for Halloween costume ideas: costumeideazone.com/ AND www.extremehalloween.com/tophalloween.htm AND www.costumecauldron.com
There are websites devoted to helping you create ideas for costumes such as www.costumeideazone.com and www.101halloweenideas.com. You could also try asking friends for ideas.
This website: http://www.parents.com/holiday/halloween/costumes/ has some fun and unique costume ideas for your new born. But remember to dress them in a warm costume.
Some ideas: Her favorite animal Her favorite pop star A group costume with her friends Her favorite literary character Her favorite movie character Her ideal future career A classic Halloween costume that's not too gory (Mummy, vampire, werewolf, witch) Her favorite food A punny costume
Lady Gaga
If you are looking for unique costume ideas, you can find them at http://www.essortment.com/halloween-costume-ideas-50-unique-weird-ideas-52253.html. You can also find unique decorating ideas at http://www.halloween-website.com/decorating.htm