Our friends at SodaStream are offering one lucky reader and a guest five nights in Iceland's capital city - the former viking settlement of Reykjavik. The prize includes flights, accommodation and $1000 spending money for a total value of more than $15,000! Here are the details on how to enter.

Thor "The Mountain" Björnsson is an Icelandic professional strong man and actor best known for popping people's heads like grapefruits on the TV series Game Of Thrones. Björnsson was recently in Sydney to promote Sodastream and raise awareness about plastic bottle pollution in Australia. We asked Björnsson to share his top five power-training tips for beginners.

We would never tell you to go out and get a Sodastream just to make cocktails like this, but if you have one, here's something else you can use it for beyond just making soft drinks or soda water. The folks at VinePair have a few great cocktail recipes that actually work well in the Sodastream and turn out drinks you'll want to share.

As you'll have noticed, we're doing evil things with a 12kg Gummy Bear right now. In the spirit of our recent Sodamite experiment, it only seemed reasonable to hack the bear's foot off, melt it and try and use it as a drink flavouring for SodaStream. A little surprisingly, the results were even worse than using Vegemite.

We know that the SodaStream Genesis works well as a source of carbonated drinks. We know that it's more economical if you use your own flavours. And we're an Australian site. Clearly, there was only one thing to be done: use the office SodaStream to make a Vegemite-flavoured beverage. It's time for Sodamite. (Be careful how you spell that.)

When I wrote up our office experience with the SodaStream Genesis, some readers asked just how much money you can save using the device. The answer? It's actually possible to buy ready-made soft drink about the same, so the value equation depends on your preferences.