For those that bleed Green and Silver.
This awesome Quidditch sweater to remind everyone where your loyalties lie.
$16.00 from Etsy
Via etsy.com
Or this AMAZING tank top that you can wear to your Slytherin house parties.
$20.00 from Look Human
Via lookhuman.com
These Dark Mark tattoos.
Y'know, if you're THAT kind of Slytherin...
$2.40 from Etsy
Via etsy
This super cute House points pendant to remind you how awesome your House is.
$14.00 from Etsy
Via etsy.com
25 Bewitching Gifts All Slytherins Need In Their Lives