fondant embelishments be made? Like tiny flowers, hearts, leaves and tiny roses? I'll need them Valentines day for a shower cake.
will the colors fade?

Hi, I haven't made any decorations with fondant alone. I always add CMC powder to fondant. If you are making the decorations with that, you can make them at least a week before. And make sure you put them in an airtight box and store away from direct sunlight.

HTH.

what about gumpaste?

You can use straight fondant for small items and you can do them now if you want. If they don't need to bend (like over the top edge, around a round side etc). To keep them somewhat pliable, put them into a tubberwear-type container & fz them.

I freeze mine. I usually make them about a week in advance and put them in tupperware. If you need them to bend around the sides of the cake, then the gumpaste and fondant mixture is better. At least, that's what I've found.