Related by context. Frequent words. (Click for all words.) 54 Lite Brite 47 crudely drawn 44 blinking lights 41 blinking 40 billboards 39 florescent 39 Blinking 39 flash mobs 38 pranksters 38 neon 37 neon signs 37 Flashing lights 37 cartoon characters 37 Craigslist Killer 36 posters 36 flashing 36 illuminated 36 cartoon character 35 smiley faces 35 lawn ornaments 35 flashing lights 35 standees 35 harmless prank 35 Crosswalks 35 billboard 35 goofy 35 flaming 35 signboards 35 lurkers 35 neon colored 35 lighted 35 Bumper stickers 35 Pranksters 35 strobes 34 mushroom clouds 34 Beep beep 34 viral videos 34 dot matrix 34 passersby 34 tripwires 34 door hangers 34 Improv Everywhere 34 prank 33 flash 33 flashes 33 Graffiti 33 4Chan 33 lights 33 banner ads 33 Lonelygirl# 33 starbursts 33 Drat 33 flasher 33 garden gnomes 33 faux 32 strategically placed 32 Pranks 32 Hoax 32 scamps 32 signage 32 tinfoil 32 stickers 32 Blurry 32 hoax 32 Crank Yankers 32 graffitied 32 strobe light 32 streetlamps 32 strobing 32 sharpie 32 graffitti 32 QR code 32 Taggers 32 LED 32 smiley face 32 Prank 32 spoofing 31 grafitti 31 dots 31 pranks 31 QR codes 31 lampposts 31 Swastikas 31 graphic 31 auras 31 zebra stripes 31 Quirky 31 lightning bolts 31 blurbs 31 squibs 31 postering 31 miscreant 31 DANGER 31 Aflac Duck 31 logos 31 confederate flag 31 copycatting 31 squiggly lines 31 cleverly crafted 31 elaborate hoax 31 bumper stickers