I have only just covered my first round cake in fondant ( in my gallery) and I wanted to cover a rectangle cake in fondant for my grandfathers birthday - is it harder? I'm worried to ruin it because it is my gift for his birthday party tomorrow night!

Ii's basically the same process as a round cake, but do the corners first, and then pull out and smooth the sides.

Refrigerate the cake so is harder. And definitively press the corners in place
so they dont get broken.
Square are a bit harder than rounds, but practice will help!
Edna

Just wanted to say thanks for the tips - I couldn't get the sharp corners but I think it turned out ok for my first time doing it, I also used mmf rather than the wilton fondant like I did on my first fondant cake and found it harder to work with. It's in my gallery if anyone wants to take a look.

That turned out beautiful (added it to my favs). I like MMF and after alot of practice it gets easier to use (for me anyways). And people actually eat it!

Thanks I noticed that last night almost everyone ate the mmf - and I told people before if you dont like it don't eat it that I wouldn't be offended and almost everyone ate it!

The cakes are gorgeous - you have natural ability with fondant On youtube they have a great square cake tutorial but you really don't need it - the cake is perfect

This video might be something: