how to dynamically change the product price in front end without attributes?

[Manik]

I am developing a module for customizing the products in front end using generating some attributes for each products. but it only works with my attributes, because am generating attributes for each product via coding, so it works with my attribute if no other attributes selected manually. If user wants other attributes then my module is not working.Is there any way to find the previous attributes for products and generate it again by adding custom attribute using coding? the main factor is I want to dynamically change the product price. by using attributes it can change automatically, but in my case It needs to work with other attributes also. Example am giving a text box in front end to allow the user to enter some text on the product. (Customer name is printed in CAP). for every letter in textbox the price have to change dynamically.. can anyone help please, is it possible to do without attributes?

Edited September 30, 2013 by Milky John (see edit history)