For the handheld marine radio this one seems to be popular around here:
Standard Horizon HX870 floating Handheld VHF with Internal GPS
https://www.amazon.com/dp/B00PM6XDNS...v_ov_lig_dp_it
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Coil leashes are expensive and there are lots of sizes and configurations that aren't particularly convenient. It's better to make a dozen or more yourself. Home made are better than name brands I've bought. Pull the strings out of standard 550 paracord, replace with a double strand of weed-whacker plastic, wrap them tight around a 1/2" wooden dowel and throw them in a pot of boiling water for a few minutes. Reverse the coil for a tighter spring. Tie about a 2" loop on both ends, then they are versatile for slipping on a snap hook or a strip of Velcro around the butt of your pole, paddle, etc.
I bought a pack of 24pc 3.5" 70# nickle plated steel swivel eye bolt snap hooks on Amazon for $20. 100' hanks of paracord on Amazon is $10. A coil of weed whacker plastic at Home Depot is what? Maybe $8? You will have all the coiled lanyards you want, plus backups. Can't beat paracord for being tough.
Use some of your left over paracord to make a gaff out of a shaved down piece of shovel handle, etc. Gaff hooks at Squidco are about $6. Burn it, wrap it, varnish it and you will have a formidable bad-ass piece of art. Sign them under the varnish and give them to your friends as Christmas gifts. With a coiled lanyard.
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You sound adventurous and ambitious. What's your specialty in the military?
Post #1. Welcome.