I like doing stripes of tangles so enjoyed this very much and kept it simple.
I used a favourite - Ditto - plus a new one A-fog and one that I learnt for the Wacky Challenge that begins with a 'V'...will have to go and look it up because I can't remember the name! Aha! I was right - it is Voga. (Knew it was V!) Plus some little criss-crossing stripes in the top left hand corner - a Zentangle method rather than a specific pattern.
I have joined the Square One facebook group that shares only 'pure' Zentangle tiles - no colour, a 3.5" square tile and abstract Zentangles, not ZIAs. I have really enjoyed focusing on the basics again and all my 'tiles' (hand drawn usually as I don't have any tiles cut or available at the moment and getting hold of original Zentangle tiles is beyond my budget...) are the right dimensions. It has been both more restricting and more liberating at the same time - something that drew me to Zentangle in the first place...and if that sounds a bit odd to the uninitiated, then I suppose you could argue that it includes at least fifty shades of gray....
And I include another, tongue-in-cheek, take on 'Stripes'. I was thinking that the most stripey thing I could think of was a Zebra...and so drew a tile that is restricted to just Zedbra stripes but viewed through/in liberating little circles. I enjoyed my own joke but wish I'd been able to make the tile look just as I wanted - I've seen others get the effect I was searching for but it's something I shall have to practice.
Do check out the other entries to the challenge on the Diva's blog - and thanks to Laura for constant inspiration!