xdos,
ah, now i hv a better understanding. At first I thought it was for a site of yours

Okay, what I would do (and this may not make sense given I am not in naija) is find out how much it will cost you to make the clip (equipment, etc) and then add at least 50% on top of that.
As for putting it on their site, the actual code isn't involved so I will let you make that judgement, although I would personally say at least N1000 (again, I am not there, so this figure may be too much).
That should do it. I hope this helps.