I actually have one, as well as a 3d printer, I was sort of toying with the idea of taking the thermal pad, printing a base that looks like my router, and installing some tiny fans to blow the slightly warm air upwards, it would be a biggish product but I’d be down for her to keep the spot while I keep my router free of heat damage
I actually did a similar project for her which you can see in the Bottom left, it’s a little monitor that actually works and used to play bird videos so she could sit next to my desk and feel like she had her own monitor. Since then I’ve repurposed it to run a media server but she still gets to look at it i suppose . The back says peppersoft