OK, now I know you have a laser printer too I'll try linking to a couple of things that might work - I have no experience of these but I'm guessing the tumbled tile surface might act like wood which is a popular surface for this kind of transfer.
You need a solvent of some sort to shift the toner off the paper and onto your chosen surface
- acetone is widely-used (as in
this tutorial)
- ModPodge or a gel medium might work (this
tutorial)
- if you have transparencies you can use in a laser printer (don't use inkjet ones, you risk them melting and potentially ruining your printer) then
this tutorial might be helpful
As with inkjet, you need to print mirror image for any of these techniques so that your text is the right way once it's transferred.
Let us know how you get on!