Splais,

The ones that come apart have split-pin type pins in them - you push the pins in and splay the ends open - it's obvious if they are. Pinning hinges to surfaces with short lengths of kebab sticks isn't a bad suggestion. I drill through the bottom surface and the hinge (tape around drill bit so can't go through to top), insert stick and CA in, then cut flush. To hide, I cut circles out of covering material with a hole punch, then iron/dope on as appropriate.

That said, Colin's suggestion is probably quicker in your case

Cam