I want to make these characters for a cake im working on, and Im wondering do I make them out of strait fondant and use the fondant like a kind of play-dough or do I build the main body of the character out of RKT and then just cover with fondant????

Not a pro here but here is my try at answering your question. Depends on the size of the caracter you want to make. If they are rather small, go with fondant only. If they are rather big, build a base with RKT and add the details with fondant. The caracter will be more sturdy and will dry faster. Am I correct pros?

I'm definitely not a pro either, but I agree RKT...if the character is large. However, I would not use straight fondant for either small or large. At least 50/50 fondant and gumpaste, or straight gumpaste or fondant with tylose added. None of the characters in my photos are made from straight fondant.

Fondant will take forever to dry/harden. Straight gumpaste will dry quickly, so if you use a 50/50 mix, you will have a bit more working time. That's just how I do it...maybe someone else has another way.

So do you suggest mixing the gumpaste with fondant or can i mix gum-tex with fondant. I heard that gum-tex and tylose are the same is that true?

Same here- I'm no professional but a bigger piece would probably be better with RKT THEN fondant, otherise it'll take a decade to dry and will cost a small fortune in fondant alone! (Plus in my limited experience, RKT weighs less so wont put quite so much pressure on your cake!)

I used fondant with tylose mixed in- have never used gumpaste so can't comment on that.

but where do you get tylose and is it the same as gum-tex??

Thanks for the info, the video was very helpful!