Gather everything you need and put it in a container. I used an origami box I made out of some nice paper for my first one and a nice gift bag for my second, but you can use a paper bag, a plastic container or anything else you have lying around.

Then write or print out the following and put it in the kit to explain what each item is for.

Toothpick- to help pick out the good qualities in everyone, including yourself.
Bandaid- to heal hurt feelings.
Smiley Face- because smiling is contagious.
Pencil- to write down everything good that happens in your day.
Eraser- a reminder to start everyday with a new slate.
Sticky Tape- to tape your lips shut when you have nothing nice to say.
Stars-to reflect what you can be.
Nail File-to smooth over rough edges.
Glitter-to make things sparkle.
Velcro-to help you get a grip on things.
Rubber Band-to stretch you to your limits.
Peg-to keep things together.
Match-to light your path.

you can also add your own little items with their own meanings if you want.