Hi. I'm Nigel. Dorset UK. I'm also user cloudwheels on githhub/lab etc.
I have this kinda mixed life as an ex-developer who became a gardener that never stopped being a developer (especially in winter) and finding the balance is tricky (sure there's a graph in that).
And as the neo guys suggest for creating a graph gist: pick a subject.
Horticulture is a subject so full of graphs that I love for that fact alone, as well as the flowrery bits. I'm slowly building content (currently just from my forthcoming exam revision notes) on a site at hortigraph.uk and when I'm able to make public at least the start of what I've been doing do so far with neo, it will be in the form of an open source project at hortigraph.org - all about horticulture and its graphs. (It's also a subject heavily populated by 65+ year olds who (no offence) probably don't understand how good graph databases are yet.)
I've also got reasonably far in my tinkering with a resource planning type graph, aimed ultimately as a free / open source tool for gardeners / other small tradesmen, called WADH - "we also dig holes" - which aims to connect all the related bullshit (risk assessments, regulations, insurance, best practices, scheduling, ordering/billing/delivery) needed to actually get on with carrying out work tasks as simple as digging a hole these days! (gardening can kill you know! ;))
Looking forward to making progress with my learning and being able to open some of these projects up for contribution.
Have fun with Neo4j, I hope you get the help you need!