Just build miniature models of stuff you do. I just helped one of my reps set up for a show and his partner built a box about 2x2x3 and divided it down the middle, stuck a 100w lightbulb on each side and then put radiant barrier on his side and just decking on the other... and had a point and shoot thermal reader attached to the display. Ill try and get a pic for you today.
Whatever your display is going to be, go all out on it and make it look like it came from the manufacturer. Professionalism is impressive. Put your lighted displays in the back of the booth and try to get people to walk in so you can talk to them. Having your tables in an L shape is the best for an 8x8 booth... You can also have banners made that come with a stand. The 3x6 foot banners are roughly 300$.
If you want to show the importance of drip edge or you have a sample of a vented drip edge, throw some shingles on it and set it in something that holds water. Then you can cycle the water to run down the shingles like rain with a $10 fish pump and some hose. Even if thats not your main focus, who cares, people will want to see the display and that gives you a chance to talk to them.
Just make your booth awesome whatever you do. If nothing more at least get some color changing led lights and set them up to draw attention.
Instead of business cards, give them pens with your company name and number.
Thanks for the advice everyone. I have never done my own spot at a home show, set-up some for others and that's about it.
I have been in business for 20 years now and never really felt the need to advertise or build business. Most people know me in this area and can get references from customers I have had for 20 years. I like staying small enough that I can be on every job and work personally for every customer. I like to work on every job I bid and am on site from start to finish....so therefore I can only take so many jobs every year.
The main reason I got a spot at this home show...was because our newer local guys all set up at it, then they bang doors after storms, aggressive sales tactics, etc. That's not how I operate...
I want to remind everyone I am still here after 20 years, same location, same number, same owners. And to introduce an insulated siding I now install and to let people know of our recycling initiative, but most of all to let them know they are not my customers but my neighbors...and there is more to it then getting paid.
Thanks again for all the advice. You all gave me some great ideas....I appreciate it.