Hackers attending a trade show need t-shirts! Small Cyber Security company looking for help

This is what a business in United Kingdom was looking for in their t-shirt design

Hey, thanks for taking the time to check out this brief.
We are a small Cyber Security company in the UK started by hackers to provide our technical services to clients around the world in a legal and ethical way. We are attending a trade show in early June and are looking to make some t-shirts for us to wear. Our company is called Heretek and we need a design that either incorporates our logo or builds on it in an interesting way. Our logo is a digital octopus with our branding colors being Electric Violet, Violet and Tolotopea.
I'm really excited to see how you would design something that, at a glance, conveys Technical Skill, Hacker culture, an Octopus, and maybe London? I'd like to get the printing done through this site and will be selecting "double sided" so please bear that in mind with your designs. These are for staff only so they should convey the wearing being a hacker but I'm open to all sorts of designs. Read more