Would have been more fun, if less accurate, to call them pinecones.

That appears to be correct.

Thank you!

That reminds me of satchel charges from Red Faction.

Actually, looked it up and found it didn’t resemble what I remembered (and was called the “remote charge” in the first game of the series): https://redfactionwiki.com/wiki/Remote_Charge

I remembered a green bag with an antenna sticking out of the top, very mildly visually reminiscent of your photo. Wonder what game that was.