It depends if you want them and for what purpose. Does it suit you???
Buy them if they look good on you and if you are going to use them for a while.
it will glow white, or more than likely, blue
it is a party where it is glow in the dark so you should wear some thing white if you don't have anything glow in the dark.
A scorpion will glow under black light. so if were to go to the desert should bring a black to shine on your shoes.
Phosphorescent coating on the surface of the paper.
Glow in the dark.
Bleach shows black under a black light or rather it cancels white papers glo effect where bleach is still present
Light gray or silver generally do. Dark gray tends to not light up like white or silver do. Most light colors glow a little under black light, though.
A poster glows under black light if there is white designs on it. Anything white glows under black light. The reason why is because those things have phosphors on them which can only be detected under black light.
Organic matirials such as urine or semen glow a sort of white-ish purple, however the detecting factor is that they glow.
Bleach shows black under a black light or rather it cancels white papers glo effect where bleach is still present
Rock With You
Yes it can. Semen appears a pale greenish yellow under a blacklight, just like most white things glow bright purple. Clean it up before you invite your buddies over to show them your new black light. No. I own a blacklight and something that produces semen; I can attest that my semen does not glow any color before or after it has dried.