After actually doing this myself and being made a believer, the lava louie kits are the only way to go. Im seriously thinking of doing my other 2 grandes and nothing is even wrong with them. I ordered a flourescent orange goo kit from Louie and I am amazed with the results. Check out the photos.
After the shipping and all its around $48.00. For the different colors you can go to johnny magmas member page and click his photo link, and he has a pic with all available color displays in full motion-> here is the link to his page http://oozinggoo.ning.com/profile/jonnymagma. you can also go to magmatower.com for some of their more pofessional work they have done commercialy.