The flyer should be a baseball card and easy to carry.
i like this.
front and back.
front = picture of band
back = directions and vital information
Promotion is an investment. The only way to get noticed is to do something different. With proper use of your network this project could be done and ready for print by the weekend.
Offer the venue the opportunity to invest in this idea because 400 people will bring a lot of money. The venue\'s information is on the back, free advertising for them.
You will have much more success with an idea that is creative then the same run of the promotion ever band uses. People will keep these. They will want one.
That place will be packed and a line outside. The reason? Someone actually looked at the piece of paper you gave them instead of pocketing it or tossing it aside without a care.
The only question is what is the price of earning more exposure and fans.