Is it any particular style you want?
For something easy I would suggest a fairly chunky yarn with big needles and a simple stocking stitch sweater with drop shoulders so there isn't a lot of shaping to do.  A multi colour yarn will make it more interesting than using a plain colour (like James C Brett chunky marble)

That is most impressive Sandra.  I like the choice of fabrics for the head - subtle but effective.

That's beautiful.  I love the optical illusion that makes the curved lines.

Maliw, that is so pretty, don't let it languish in a box for 2 years.
I've got as far as getting the batting and backing fabric, just need an uninterrupted session for basting.

I didn't have a short enough circular,

Aren't you magic looping?

My Elna 664 Overlocker has a miserable level of horrible yellow light.  I do have a daylight lamp on my sewing table but can't get it into a useful position to help when I am using the machine.  Either it's in the way or I bang my head on it.

The machine has a 15w bayonet bulb which looks pretty standard.  I was looking to see if I could get an LED to replace it.
I have found this but it doesn't list the machine I have.  It does say universal.  Would it be safe do you think to use one of these if the fitting is the same?

Crikey Sewing Sue, what a thing to embark on. It must have taken you forever to get this far.  It's going to look fabulous.

They're both very different but I like the black and white one.  I like the texture that the various patterns give it.  But, with both of them, would more of it dilute the wow factor?