Cars you drive. Chemistry products you get in all the shops around. Modern biology. Nuclear wastes.
Come on! Toy planes aren't the only destructive tech of war we have to live amid now...
We got cams everywhere. We got Internet. Unite a couple of new techs with some old mortars - you'll get more military power for your $ than any drone may give you.
https://disqus.com/home/channel/newsviewsdiscussions/discussion/channel-newsviewsdiscussions/how_the_pandoras_box_of_drones_was_opened_and_what_that_means_for_war_with_arthur_holland_michel/#comment-4382355906
Solar Panel Splits Water to Produce Hydrogen
You don't really want to store H2 in your home - just as you don't want to store other explosives under your bed.