To be a Clown

Start by looking for a colorful pair of trousers. If you don't have any, see if there is some other baggy clothing lying around. Since clowns have big buttons on their coveralls, use colorful mesh dish scrubbers which can be found in your kitchen or the grocery.

For your hair, get a wig because it will take more than a day to get off the color on your hair. Get some white makeup for your face and then find a pair of goofy shoes to complete the outfit.
 

Tin man from the wizard of Oz.

To dress up just like him, you will see cardboard which will be most of your costume. To make yourself look like him, you can spray the cardboard with silver spray paint or attach aluminum foil all around it.

For your hat, see if there is an old funnel in the garage. You will need black shoes for your feet and silver eye shadow for your face. Another option will be to make your own make up using silver face makeup with cold cream and food coloring. Don't forget to put black eyeliner to draw lines from the corners of your mouth to your chin.

 

Making a pirate costume

For this you will need a pair of black or brown hospital scrubs. You then cut the top portion as well as the sleeves to create a vest. To make it look good, sketch and skill and crossbones onto white felt then paste this on the back of vest.

Now put on a white shirt and just wear a pair of jeans. Since not all pirates wear a hat, you can wear a bandana instead just like some of the characters in Pirates of the Caribbean.