You shouldn't invite yourself in the first place.
Just yourself (and maybe a guest) !
Both bring something or else it's not fair
you should bring food and something to drink
One way to politely invite yourself to a party without seeming pushy or imposing is to express your interest in attending and ask if there is room for one more guest. You can also offer to bring something to contribute to the party, such as a dish or drinks. It's important to be respectful of the host's decision and understand if there may not be space for additional guests.
You should invite your crush. Just give him or her a casual invitation and make sure that they aren't uncomfortable or feel weird. If they will be the only boy or girl at the party, you might want to tell him or her to bring a friend.
Something to amuse yourself like an ipod and a passport
Do what you do when you have a party at school. Have everyone bring something to eat. Then go to the dollar store and pick up a few things as decorations. Make your invitations out of something cheap and different. You don't need a lot of money to have fun.
Time Date where what to bring why
Water, a radio, food, and I'd personally bring smething hard like a shovel to dig yourself out in the event that your buried in you cellar. Something for communication, extra batteries for a flashlight and radio, blanket to sleep on
Press Triangle for PS3, Y for X-box. This should bring up your friends list. You should be able to figure it out from there.
In a word: no, you shouldn't.
On a general basis no, you do not invite out of town guests to a wedding shower if they live a fair ways away because it is just a half day event. They will bring you their wedding gift for you and your husband.