Mitzi Sonobe.

Cat proof Origami?
This was my daughter's Christmas gift to her kitten Mitzi: a stellated octahedron made from Sonobe units. Mitzi (short for Mittens not Mitsunobu!) doesn't look too impressed but I'm sure it will grow on her. It contains a bell but we may have to replace that with food treats to encourage her to appreciate it fully!

Christmas Star

Here's a star I designed a couple of years ago. It reminds me of the ones you see on Christmas cards with extended "twinkles" so I though it would be appropriate for this time of year. It's folded from a windmill base also known as Froebel's basic form. I drew some diagrams which weren't meant for an audience and probably aren't the clearest you've ever seen, so let me know if you get stuck. I suppose the trickiest bit is the first open sink but if you prepare it well in step 7, it shouldn't be too difficult.
Happy Christmas everyone!