Many of the proven NOCH landscaping materials are available in practical cans. 
Track ballast and flock material can be so easily, z. B. with a spoon, remove. Tree blanks can be painted or sprayed with glue and then flocked over the can with foliage. Excess material falls directly back into the can.

The popular NOCH flock material in a particularly fine design offers a variety of possibilities to make model landscapes and dioramas realistic down to the smallest detail and decorate them true to the original. 
Every single one of the wide range of shades is finely tuned. You can then use the sound of your choice immediately “pure”, but also mix different sounds into a very individual “special tone”.

Note: For 1 m ² scattered area approx. 100 g of litter material and approx. 500 g of grass glue are needed.