This looks really cool! I can’t find anywhere in the US that sells it but I’ll research more tonight. Thank you!
I think it was nostr:nprofile1qqsx8zd7vjg70d5na8ek3m8g3lx3ghc8cp5d9sdm4epy0wd4aape6vspz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsq32amnwvaz7tmhda6zumn0wd68ytnsv9e8g7g9pux3g who tipped me off to
https://www.lightningpiggy.com/
Seems like it might work for you.
Discussion
No problem!
Your kids might find it interesting to build one themselves if they're old enough. They have some pretty involved instructions for how you can build one yourself by buying the parts.