Growing up, I was fortunate that my Mom loved to sew and make our costumes by hand. As we got older we loved join in! It was a wonderful way to bond and get involved in making our very own costume. I recall being a circus clown, kitty cat, and even a trash can made out of a cardboard box ala Oscar the Grouch... LOL!
Even if you aren't a whiz at sewing, you can still be crafty, thrifty and creative in creating your child's costume. Sometimes all you need is just a funny wig or hat, sunglasses, fun jewelry, pair of tights, one of Daddy's old shirts to cut up, a party dress, turtleneck, a headband for ears or crown and a few pieces of felt or fake fur can do the trick to make an adorable kitty, princess, rock star, baseball dog or mouse! Check out SlapDashMom's blog for 50+ DIY ideas!
Another great idea is getting friends and family together do a "Halloween Costume Swap" each year, that way no one has to spend a dime (hurray!), and your kids have a 'new' costume every year! I always loved classic costumes such as a witch, cowboy or clown for kids, but understand that kids seem to really love being a famous character like Spiderman, Batman, Elmo, a Disney Princess & Thomas the Train! Here are more costume ideas from Spirit Halloween, Carter's and iParty.
Best of luck! Happy Halloween!