End cap needed for MYOG carbon tent stakes

Aluminum gutter spikes, perhaps?

Great idea, thanks! If there happen to be some with the correct diameter that could work really well.

I’d probably cut them short and predrill a little hole through the spike shaft and carbon arrow shaft for a cord to run through, then glue the gutter spike end in place.

Your suggestion also made me think of an alternative. There are many alloy bolts sold as ultralight cycling components. All different sizes & heads, metric and imperial. With just the right size one could even try using a tap & die to add very small threads to the carbon shaft. May help it hold a lot better when glued.

I’ve used nylon screws for this purpose (similar to these: https://tinyurl.com/ybulbr29 ). Light, easy to work with, durable enough.

Thanks Jan. That looks like a good option and is possibly the cheapest/lightest. Did you glue them in place and/or add a thread to the shaft they were fitted to?