GM do you have or know where can I get rubber base for National Geographic Tundra monopod?

No this is not true. FACT CHECK Did National Geographic Purchase Footage of Destructive...

Is the ball joint getting worn? I'd contact the manufacturer and see if you can order a new ball. As it gets older, it doesn't fit the socket as well (kind of like Grandma's first replacement hip!) and things get floppy. Either a new ball or perhaps putting something rubbery, like a gasket, around the socket, to provide some friction (you could use Sugru, a couple dabs of Marine Boat Glue or Shoe-Goo, really anything rubbery-feeling will do in a pinch,) should get it working. And if not, there's always black gaffer tape, the photographer's best friend!

Please you visit www.clestron.com/telescope/powerseeker114AZ & you download the manual.This same model which you want.
Thanks.
Dhananjay Raval -India.

You will not find a manual for that imported telescope. NEVER buy scopes from Ebay, craigslist, or any of the big box stores unless you know what you are buying.

Most of them are imported and have NO CUSTOMER SUPPORT!

It all depends who does the surgery and if they have a good record and very high customer satisfaction,
Be happy with who you are not who you can be.

Manufacturer is unknown for this scope, but it probably originates in China and is resold with the National Geographic brand name, 150$ seems a little high for a used one. I would probably price it at 100-125$ depending on the condition and the included accessories, if any.

Complete instruction manual to be found following the following link: http://www.sbdirect.biz/_download_files/NG09.pdf (my son also lost the instructions and I had to search the web to find another copy...