Update
07/01/2011

I recently realized that the mat I referred to in the DIY documentation isn't sold online any longer by Harbor Freight Tools. You can get limited stock in the store, but I suspect once they run out, that is it. Here are some alternative places to look for the mat. The best deal might be Spirit Halloween's foot pad activator.

Mat used in documentation Bunker Hill Security 96481

Harbor Freight Tools
 

http://www.harborfreight.com/pressure-sensitive-alarm-mat-96481.html  (out of stock)

 

The Haunt Store

http://thehauntstore.com/shop/index.php?main_page=product_info&cPath=72&products_id=2 52 (out of stock)

 

Amazon
 

http://www.amazon.com/Homesafe-Alarm-Pressure-Sensitive-Makers/dp/B003PD0IK6 (out of stock)

 

Trossen Robotics
 

http://www.trossenrobotics.com/store/p/3508-Switch-Floor-Mat-14-Inches-x-30-Inches.aspx

Star Light

http://www.starlight.com/switchmat.html (120 Volt Switch Mat w/ built in relay)

 

Spirit Halloween
 

http://www.spirithalloween.com/product/tt-foot-pad-activator/

 

Monster Guts

http://monsterguts.com/index.php?act=viewProd&productId=95

 

PSC
 

http://www.padalarm.com/alarmingmats.htm



 

Home Made


http://www.ehow.com/how_4603489_pressure-mat-alarm.html (pressure mat alarm)

http://supersoda.com/detail.php?id=00000000036   (homemade version of a "stomp pad")

http://softlyspokenmagicspells.com/halloween/mat_switch.html (mat switch)

http://www.wohlershome.net/blog/halloween-projects/low-cost-floor-mat-switch-project (Low Cost Floor Mat Switch Project)

http://www.earthween.com/home_made_mat.html (home made mat)