After putting various adhesives to the test, I found that to glue down model grass, you will need to use 'thinner' adhesives for this kind of material. It is also a good idea to use tweezers or another tool that can help pick up individual blades! Thinner glues are best since they dry quickly and allow corrections if needed (e.g., accidentally picking up too many green pieces). TIP: Based on my own experience, try not to overdo it with the adhesive, as there might be some chemical reaction between materials that could ruin everything! Also, make sure you do any tests first before actually putting your project together, just in case something goes wrong along the way!