The world's coolest store is London's Hoxton Street Monster Supplies. Among other things, you can buy a big jar of the Thickest Human Snot there. It's harvested from free-range snivelling humans!
The shop also sells gore, malodorous gases, children's ears, organ marmalade, olde-fashioned brain jam, congealed ear wax, and a host of other monstrous items. (To learn the story behind this magical place, visit the links below or above!)