You don't put the snows in your duck deeks, you put them off to the side in their own cluster. The ducks aren't scared of the snow deeks, its the honker deeks thats a no no. You can put those out too but they have to be in their own area not right next to your blind. As far as mojo's, I would use them right when they become leagal, and when its foggy, maybe a real windy day. Eventually the birds shy away from them, unless it's foggy. I don't use em, even though I should. Tumble weeds are great cover, you shouldn't have a huge problem finding some in Los Banos. Also Hay is great, put it all over the island it helps to keep the island from becoming a muddy mess and its great camo. Most people use some sort of wire fencing or chicken wire to mount it. some stakes and some zip ties. Camo paint the inside and top edge of the blind.
Here is a picture of a camo contraption one of my renters concocted, I call it the OLN, because I feel like I am on OLN when I am hunting there.
I need to put more cover around my blind, but here it is.
I had a leaky blind replaced and I had the guy on the tractor grab some bushes and plant them around the blind.