Homebrew PCBs

The trick to solving many problems is finding the right search terms.
Here are some Google terms which lead to sources of gummed paper in A4
sheets.  I think there's a good chance that these could be used for
printing and toner transfer in a similar fashion to the Pulsar paper:

  http://www.pcbfx.com/main_site/pages/products/transfer_paper.html

The terms are:

  "gummed paper" A4 craft

  "Bright Ideas Gummed Paper"

This UK eBay seller:

  http://stores.ebay.com/Quickdraw-Stationery

has some for sale now, item 170775872477, 20 A4 sheets for UKP5.

There is also "flap gum" or "envelope gum", which can be spread on to
paper and let to dry, so it forms a gum surface just like on
lick-to-stick postage envelopes or stamps - which I think is the same or
similar coating as on the Pulsar paper.

  http://www.crafterscompanion.com/Envelope-Gum_p_32.html
  http://www.fantastickadhesives.com/pages/flap_gum.htm

 - Robin        http://www.firstpr.com.au/pcb-diy/