On-the-fly wax/wax alternative

What’s up NS fam, first of all Merry Christmas to all you g’s and second of all do you guys have any hacks for makeshift/diy/emergency wax for skis? My main skis are getting worked on rn so I’m on my back up skis which haven’t been waxed in months. I’m at my parents house and don’t know of any shops nearby and tbh I don’t feel like taking them to a shop because the skis are already pretty beat and I’m cheap lol. Anything I could do to make my skis slide even a tiny bit better better on the snow because I’m struggling to get speed in the backyard lol. I was thinking maybe like Pam cooking spray, wd40 or melting some skate/candle wax. Idk literally anything, it doesn’t have to be legit, just a temporary fix for the next couple of days on the backyard hill. Lmk homies. Much love