To be honest: the last Tabletop-Shop we had, closed about 3 or 4 years ago. So at the moment we just have the common GW-shop. Or a shop for artist-stuff, they have some things like Creartec Resin, the shop is called Boesner, I could give you the adress of the shop if you want. Or if you want to order something at a shop online you could let it send to my work and pick it up there, if you wanna take the risk. Just PM me, if you need any further assistance. I will be on tour until tommorow evening, but then I can answer you.
And as schrumpfkopf wrote: Battlefield Berlin ist always worth a travel.
Cheers, Alex