i've been asked to do a 2 tiered cake that look like gift boxes stacked. how do you acheive the look of the box with a lid on? i know sugarshack does it by rolling a thin gumpaste and leavesit to dry. but i was watching a video on youtube and the woman han fondant on the side only, then placed a cover of fondant on top. does anyone know what i'm talking about?maybe something like in the picture below?

looks to me like what you said. A lid made of gumpaste/fondant (i guess whatever you're more comfortable working with) and set out to dry before being placed on top.

but im sure theres an alternative way. i dont want a thick double layer of fondant on top. please can someone help. i'll send another picture if it helps.

Cover the sides of the cake w/one piece then lay the top over so it comes down enough. You'll only have dbl thickness at the top of the sides.

What kakelady said. Treat the fondant on the sides like a wide ribbon. And then apply the top square and fold it over the sides. I always have to do some trimming to the top after it's on the cake.