for bike pump, she does have a small handpump she can use, did you try it?
Also how should a vacuum be used to inflate?
Quickly, I would imagine 😉
All joking aside, some vacuum cleaners have a 'reverse' switch that blows air instead of sucking, presumably either for dusting purposes or to unstick something that gets caught in the hose while cleaning. I imagine if something like that were used to inflate, it would be very quick and rather difficult to control, but available in lots of places including homes, some stores, and gas stations.
I tried the hand pump, but couldn't get her to use it again afterwards... Might be because she had some water left, or the vibrator/other pump active?
Sand got it about inflating with the vac. There's also the outlet, which some industrial models have a hose attachment to, mostly used in shops and warehouses (and workshops). Some of those places have air tanks too?