My DH was gone for 17 months, and thank god my neighborhood and community were incredibly supportive. I HATED asking for help too, but people just insisted. Since I was pregnant for about 6-7 months of the deployment, and then with a newborn, I realized I just couldn't turn them down. Things I appreciated the most:
Neighbors having my 2 older kids over for playtime for several hours once a week. Gave me time to have some peace and quiet.
Once a month or so, one set of neighbors had us over for dinner, and the husband would play XBox with my boys. So nice and gave the boys "Guy time."
A couple times another neighbor just came and mowed my lawn, didn't even ask, he just did it!
Some people from church came and totally weeded, layed bark chips etc.
People from church and some other very kind souls gave me gift cards and such both at the holidays (both times!) and when the baby was born. We weren't financially struggling really, but it was a treat to have extra money to spend!
I think it's AWESOME that you are willing to try and come up with a 'rent a husband list.' Somehow I ended up on a local radio station to share my sob story (

) and the DJs asked people to donate their time. Unfortunately, a lot of people called, and ALL of them flaked on me. I was so bummed. But maybe if it's more of a community thing, people won't be as flaky!
We were so blessed by people's generosity throughout the whole deployment, it still boggles my mind. Just knowing people care, are praying for you, and just trying to lend a hand now and then is SO VERY APPRECIATED! You are awesome!