If you own a BA NFT, you can rent it out on the Bored Army Marketplace. Other players can use it to play and earn GOLDs, and you both split the earnings 80%/20%. Just log in, choose the NFT you want to rent, and click "Rent NFT" to make it available.
You decide who you want to partner with, and you can cancel anytime. No limits on how many NFTs you can rent out from your army - but as a tenant, you have a limit of 10 rented NFTs in your account.
Remember, this is still an early version, and we'll keep making it better!