I have an idea for a new kind of LEGO, using new types of elements I have an idea for a new LEGO product (not a LEGO set or anything, I know that the Lego ideas site exists, but a new "kind" of LEGO)

I've been trying to contact LEGO about it without any luck.

So I thought I'd give this site a shot as well since I think the idea has a lot of potential.

Now to the question. Is there any way I can contact a LEGO designer or just anyone at LEGO to pitch my idea to?
Or should I just give up?
If the idea is a new kind of part, element in plastic, you may want to take it into your own hands and try to design it in a free cad app (like Sketchup, Open SCAD, Creo Elements or something). There are people around here (like myself) who have 3d printers, and may be able to suggest or try things out. You can then see if there is a market for such Lego compatible elements - see who else is interested. 

Lego are unlikely to take these kind of risks themselves, but there are resources for people to try new things themselves.