Have you tried a JustFog Minifit? It's not a disposable, but it's a great little stealth vape, IMO. The flavor is really good, and it produces more than enough vapor, for me anyway. The pod and original coil in it lasts a long time, too. You can also rebuild them if you want to. YT videos show you how, even though the pod wasn't made to be rebuilt.
I noticed last week that Ejuices.com and Eliquid.com both had a bunch of disposables in their Markdowns section. They also have a coupon code that's good until the end of this month...for 45% off of the markdown prices, with a minimum order of $20. The code is: MARKDOWN521