Just spent 15 minutes of my life watching some dude across the planet make a fake rock

I dug some holes in the garden, put a board over it and added some weights. This produced hills that didn't need much shaping.

10kg bag of value cat litter , can grind for whatever grade of stone , lighter than real rocks and super absorbs pva . Makes good churned eath affects for trench or explosions. Back to mansion build thats taking forever. Love the tips here !

If you're working with light materials, adhesives and so on here is a handy hint:

Came here looking to find a technique to easily build large thin rocks but realized the holes created with this foam would be perfect for creating large Coral for underwater adventures. Will have to try!

Remember folks, its okay to ruin your wife's new counters, but you never want to damage your work shop top.

Wow!! You've just given me one of the best ways to build a hill with a railway tunnel going through it. Cheers mate. Take care...

This is absolutely incredible. I've been looking for a nice stylized method of wargaming terrain, and this nails it

Wow, when you added the clump foliage it really scaled down the entire thing! It went from looking like a fairly large boulder that someone might be able to stand on, to a massive hill that could fit an army. Really cool!

will use this idea for my railway layout. Heres a little tip for scatter. collect some sawdust. water down some paint and mix in sawdust till it just crumble. let it dry completely can take few days. then wen dry you can either put in a sieve for fine or break it down rubbing in palms of hands. saves a lot of money on large areas

I love the way it looks. Sort of like rock outcropping from a dried up river bed. I have used expanding foam before on my layouts. It works perfectly and with a set of good gloves the expanding foam can be formed after it dries up a bit.

So glad i stumbled on tjis. I had an idea for a fantasy landscape set in clouds. Been stuck for how to make the swirly cloud forms but using globs of expansion foam and shaping with dremel and sand paper would work lovely.

You can also mount these on cheap cake boards that are available in discount shops. I get packs of three for €1.50 from the shop in my town. They come in different thicknesses, and are either round or square, so can be used to make all kinds of scenery bases. The square ones are 12" square, so you can make them fit edge on for streets or other types of game table scenery. I get them in "bulk" (I grab the whole lot at once) when I see them re-stocked, and it saves me a fortune in buying foamboard from the art shop.

One quick tip - I find it actually easier to base-coat with a dark brown instead of gray. Lets you skip a step or two. From there, dry brush the earth with a leathery brown and the rocks with a midtone grey, then you can top it all off with an offwhite. Saves a lot of steps and still looks amazing