Coroplast, or corrugated plastic signs, are the perfect alternative for less expensive signage.  This revolutionary product makes attractive signs for less than permanent outdoor signs, or interior display.  The plastic material is outdoor durable for a smaller period of time than other products like aluminum or wood, which is exactly what some applications call for.  These signs are available in a variety of colors, and are decorated with regular vinyl lettering.  Check out the samples below.
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