blu-tack emergency

Ok so I'm looking for a big roll of brown parcel paper (like they use in Ikea or in post offices for wrapping) but I can't find one in our stationery catalogues.  I'm also looking for blu-tack and failing miserably, the best offers I've had so far are children's plasticine, and cooked rice.

 

I want to be able to stick bits of card on the wall (or even better, onto my brown parcel paper), and then move them around.  Flexibility it seems is not something I'm going to easily be able to achieve.

 

Argh.