When I based my two orcs, I used PVA glue to glue down the sand, wood, etc. What’s wrong with that?
If you can’t understand the picture, the sand, wood and rocks that I glued to the model’s base detached itself from the base, and yet remained intact. Fortunately, I was able to just grab some rubber cement, and glue it down again without too much hassle.
From this experience, I have two recommendations for you:
- Do not use PVA glue on the base.
- Before gluing things to the base, ruff it up a little (ie. with a knife) to give the glue something to stick to.