PM me your address and I'll send you a slack handful (work was binning old stock so they didn’t cost me anything)

the idea works quite well for specific tasks like engraving lots of the same item but for a larger bed/pads it would take quite a bit of effort to draw out the static volume.
Remember to put the one way valves close to your syringe to get maximum draw

The way I had mine set up it worked like a by bicycle pump but in reverse