Alright, so on to grille blocks. You wanna do one, but... what to use? how to do it?
Well, here we go. I've made a few blocks out of whatever I can find at the time. Right now, I haven't gone out and spent anything on supplies, I just find whatever is lying around the house.
From making so many and still continuing, All I can say is, MAKE MANY MANY PROTOTYPES!!! When you get to the final product, you'll know everything about how to make it perfect. If you make a prototype before making a prototype, it REALLLY helps. Lets start with the lower grille block.
I first started out with a half used roll of duct tape. Yea I know, not the best, but it worked. I don't have a good picture of the first one, but here's what it looked like after a week:
Yea, I know, it's weather torn, but you know what? it lasted 3 good months of rain, snow, and lots of mud before it finally died today *RIP grille block*. I replaced it today as well, but I haven't had the chance to take pics, cause It was dark when I finished, they should be up soon.
As you can tell, it's just duct tape screening across the lower grille, and taped at the edges to help maintain it from falling off. During it's 3 month life, I just patched the holes with more duct tape. Not much to say unless I go into REAL depth, but that's how it went.
One thing to note, is make sure you've washed it before applying, I did a quick one and didn't think of the outcome, but I'm sure if it was on a non-dusty surface, it would have lasted much longer.