If not, simply go with colored mulch.I say this from experience. 

@Kim Rose - My friend and I are actually thinking about doing something similar.

I passed my final exam with flying colors and passed the state exam the first time I took it.

Wifey has been choosing finish items and colors...

Thanks, @Dustin Rose!

My applicant pool rose, as did rents.  

City County # of households Median Household Income Oxford township Oakland 7,868 $70,381 Livonia city Wayne 37,199 $70,125 Brownstown township Wayne 11,119 $70,095 Chesterfield township Macomb 16,710 $66,779 Gibraltar city Wayne 1,739 $66,477 Rose township Oakland 2,587 $66,117 Royal Oak city Oakland 28,371 $65,786 Shelby township Macomb 29,464 $65,404 Allen Park city Wayne 10,592 $63,007 Farmington city Oakland 4,671 $62,261 South Lyon city Oakland 4,805 $61,523 Holly township Oakland 4,272 $60,960 Sterling Heights city Macomb 49,444 $60,089 Harrison township Macomb 11,076 $57,217 Flat Rock city Wayne 3,664 $56,700 Clawson city Oakland 5,481 $56,395 Waterford township Oakland 30,127 $55,552 Van Buren township Wayne 11,275 $55,309 Woodhaven city Wayne 5,163 $55,266 Trenton city Wayne 7,798 $55,218 Lenox township Macomb 3,175 $55,159 Sumpter township Wayne 3,533 $53,153 St.

Or, possibly a small change like paper color or envelope color/type could help you stand out.For example, I am partial to patriot letters in blue invitation envelopes right now.

I like @Dustin Rose's thinking on this.  

I attend a couple of different local BP meetups (thanks to @Eli Rose and @Jered Sturm for getting those started!)