There's always animals in need of some TLC and/or relocation...all it takes is your open mind & heart to help. (Well, extra cages, food & equipment helps too...) But you're correct, no venomous should be in the same house with children...they don't always make the right decisions. Still, I'm so glad your children will grow up knowing & appreciating snakes & other reptiles. That's something else I've done over the years: local educational talks with my animals. When I lived in CA, I kept a number of our local species, including at least one of each of the 6 kinds of rattlesnakes we had in our area, so many people could safely see them up close (in locked glass cages) & learn more about them, including an appreciation of why they're important, & yes, even beautiful creatures. I never expected to get into rattlesnakes but my curiosity & desire to keep them from being needlessly killed led me there. I also took in non-native pets that people no longer wanted for various reasons ("it bites, it's mean!" or they lost interest, often it was sick & poorly cared for).
You do have an advantage, if your herps are mellow enough (& very few ball pythons are feisty, lol) you might consider talking to the teachers where your kids attend school...see if they'd like a little "show & tell"? I no longer give lectures, but I still enjoy the "show & tell" interactions. Our large local feed-store (Gregg Farm Services) starting putting on a "wildlife expo" every summer, which after the first one, got so big that it's now held at our fairgrounds. It's free admission & runs about 6 hours, with all sorts of exhibits (commercial & educational) related to wildlife. My friend (who also keeps snakes etc) joins me & since we're typically the only ones with live animals there, we are mobbed from start to finish. It just doesn't get "old" watching people of all ages realize that they can get close to and touch, even hold, a snake that's nothing but calm & friendly...something many have never in their lives thought they'd do. Of course, we know our animals well...I've never had any of my snakes bite anyone, or try...(not even a vet). This last year I surprised my doctor: he & his wife stood before me & the 4 snakes I had with me in stunned silence for a few minutes but finally he said "I had NO IDEA that you did this!?" LOL This "wildlife expo" includes various entertainment, food venders & drawings for door prizes...it's fun, & obviously is good for businesses that participate too. (note, summer is beastly hot...it's held mostly inside a huge air conditioned bldg @ fairgrounds)
A word of caution though: it's habit-forming, watching people change their negative opinions about snakes & all.