Hey Buddy I saw one vid where you were selling fow terrain (beutiful stuff) I saw one piece you were thinking about doing 15mm sand bags . Take fabric tape for like wraping joints (medical) then take rice. put the rice on the tape. Leave 1-3mm between each piece of rice then fold it over and press down from the top. cut with scisers and you have a strip of sand bags bags. Then you can cut individual ones to scater them or put at angels.also you see the fabric when you paint it! washes work to:)

great vids.great work.great terrain