Please help these kids get back on track

Hello. My name is Terri and those two children are my grandkids. They're such great kids you'd adore them if you met them. Their mother took off 5 weeks ago giving up 3 years of sobriety, a good job and her children. I am deviated. I finally got temporary guardianship but I don't qualify to be a foster parent, which means I get no help financially. I'm trying to get food stamps but since my daughter already has an open case it could be some time before it's fixed. These kids have nothing no cloths, no toys their mom dropped them off for me to watch for an afternoon and never came back. I've gotten a few things but they need help. If you have it in your heart and pocketbook we'd be so grateful. I'm 60+ years old but I can do housecleaning or yardwork to make a few dollars. Please if you can help we can use it. God Bless!