You totally can get them done- these were all made in one morning. A few ladies and I got together and completed these.
Everything is pieced together except the eyes nose mouth, stem and leaf. However it is "raw edge" appliqué. Iron it on and blanket stitch it down. It really is simple.
Pop over to my blog and look it up. All the instructions are there, the patterns are free to download and I would be happy to help you with talking you through any part you might have questions with!
But don't think you couldn't get it done before Halloween. It really doesn't take long! Hope you try it!
Good luck!