PG and VG a couple different bottles sizes
NIC maybe in 36,48 and 60mg strengths
plastic and glass bottles
plastic and glass graduated cylinders
plastic and glass beakers
Erlenmeyer flasks
cotton wick
SS mesh
kanthal wire
surgical gloves
safety glasses
nic test kit
pipettes
Stock a DIY starter kit that includes PG, VG, NIC in a select able strength, a glass beaker, a graduated cylinder, gloves, safety glasses, bottles, and maybe a nic test kit depending on what they cost.
I would prolly stay away from flavorings as you would have to carry a fair amount of them as I know I would like to buy all my flavors from one place so if you dont have them all..... Though there are high margins on flavor west flvors in there large sizes then cut into 10 and 30ml bottles as I have seen other sites do.
While we are asking for items to stock....
Apollo E2 TWIST VV batteries..... please please please, these would sell like hot cakes
E2 Twist Battery-E2 Twist Battery Manufacturers, Suppliers and Exporters on Alibaba.com