Footage on Twitter (via the Christo Grozev link above) of Ukrainian servicemen in hospital, and one on leave being re-united with his daughter, sent me to the
United24 website. This now features
Dronation, where one may send a drone or funds to buy one. Brilliant marketing!
United24 is a central point for various aid options, military and humanitarian. As always, I did my own checks on the website's safety & reputation before paying, lest there be Russian interference.
The way the Internet is enabling the Ukrainian aid effort is one of its greatest benefits, IMO.