I was asked to make a gold confetti and ivory wedding cake like the one on this link https://www.pinterest.com/pin/91620173644040664/ but I am not sure how to achieve the confetti look and colors. Any help would be greatly appreciated. Thank You

Just cut thin rolled fondant into tiny pieces (sqs?) and airbrush or paint them gold using dust mixed with vodka (or similar spirits).  You'll need to make 1,000s of them:)

For ivory fondant just use a very tiny amount of brown in a large quantity of fondant.  They do make ivory paste if you can find it.  Again it just takes the tiniest amount for the color.  You can always add a bit more gel color but it's hard to tone it down if you get it too dark. 

Wouldn't edible gold leaf work?

It might but it is soooooooo expensive!  It also is very delicate so each tiny sq would need to be very carefully handled and placed on the cake :(

I just saw a really cool tutorial on this.    It isn't as hard as it looks. 

unfortunately I can't locate the darn thing. 

Here is a similar method to the one I saw.

http://thecakeblog.com/gold-sequin-cake-tutorial

If you are debating what gold product to use, here is a blog post that discusses the pros and cons to several ones on the market. 

Hope this helps 

http://artisancakecompany.com/2014/11/the-best-edible-metallic-food-colors/

Clearly, I spend far too much time on the internet watching cake porn ;)

http://www.icingimages.com/blog/2015/04/easy-sequin-cake-tutorial/

No need to buy a machine, either, as you can easily cut the bits yourself.

@maybenot

THANK YOU!   The tutorial you shared was exactly the one I couldn't remember where I saw that technique.