im doing a tractor cake later in the week and am wondering if i can do the back two big tires out of cake standing them up, covered in fondant, will the stay up or collapse. or should i go with RKT. just trying to get as many cake servings in the tractor as possible. what'dya think??
I just did one like two weeks ago. I was going to make them out of cruellers but the size of the cake was HUGE. I ended up using sytrofoam and covering in black fondant. I don't see why you couldn't make them out of RKT. I personally wouldn't use cake. How many servings do you need? Perhaps there is something you could add to the design to increase the serving count.
I am doing a tractor cake, made on wood stand with post on bottom , I sitting it on a full sheet cake , making it look like a field, so that I can get more servings for quest. I still deciding on tractor tires, I think cake will definitely fall over. I might use the suggestion of styrofoam. Thanks Bonnie
I would love to see what you did for the tires! My son wants a tractor cake. I recently made a CARS cake, cut out cake for tires and covered them in fondant. It worked great. But a tractor is taller and you need bigger tires. Hope it worked!
i ended up making them from RKT and covering with black gp. they were about 5" around. they worked well ,although my cake wasn;t that great
And mini chocolate doughnuts for the front tires... 
I have tried using cake wrapped on fondant for the rear tractor tires and they fell over even with support. Look at my JD Tractor- I needed more servings too so I made the tractor going through a wheat field. Good Luck!
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