There's not, sorry Robyn.
You may have to come up with a DIY solution, although this option may have to be removed for winding up if its too chunky.
Something like a bit of plastic coated paperclip may work!

G'day Ryan,

The Luci Solar String lights have a waterproof rating of IPX4 which means they can withstand the splashing of water and light rain. You just wouldn't want to keep these in prolonged rain or submerge them in water.

G'day Alex,

Yes these would be great to use on a gazebo, you can pop them around the supports and as long as you can secure the base of the lights you should be good to go!

G'day Rohan,

Luci advise you'll get anywhere upto 20hrs of run time, which is calculated on the low setting.
Obviously, you'll get a bit less than that on Medium of High.

G'day David,

The battery in the Luci Solar String Lights is sealed, meaning it cannot be replaced. 
If its any consolation one of the crew here has had theirs since we first started stocking them almost 2 years ago, and they haven't missed a beat.

G'day Anthony,

The Luci Solar String Lights have warm white LEDs.

G'day Pete,

At this point in time we can only get out hands on the white ones, but we're getting our product acquirement team having a look into the coloured version to see if they're being brought into Australia. If they are we'll get them in and pop them up online.

G'day Andrew,

Yes, good news, we've got some on order that are expected in May, so as soon as we've got all the details finalised we'll get them up online!

G'day Ant,

Yes the Luci Solar String Lights can be charged from a USB Battery Bank, it will take approximately 2-3 hours for a full charge.