LaserTag 305 definitely is not rigid enough to use as a "free-standing" sign: it needs to be placed in a framed / backed signholder as opposed to simply stapling it on a stake or post. If the signholder has the 'ear tabs' on all four sides, in many cases, that is all that is required to secure the sign. However, exceptionally windy areas or storms can sometimes blow the signs out of the signholders, depending on which type you have.

Here are some quick fixes for signs being blown out:

• Squeeze the tabs down tighter: If you have metal signholders, the tabs can be squeezed down tighter to fit snugly against the media. They are typically manufactured with a .30" gap, whereas the media is .05". Just crimp or squeeze them down tighter and that will typically solve most of the blowout issue. Of course, you can't do this is you have plastic signholders.
• Paper Clips / Binder Clips: insert two paper clips over the signholder, one at each of the top corners to hold the sign tight. If you slide them all the way over to the left and right, they are hardly noticeable. You can also use the small, office "binder clips". Though not as discrete, they will hold the product in place through fierce winds.
• Hook & Loop fasteners: "Velcro" tape or dots can be used to secure the media in place. If you get the "industrial" rolls, they are very strong and inexpensive. Place the male, hooks, on the signholder and attach the female loops onto the back of your printed signs.