Looks like I should mail you some vac stack tubing.
First, nice balls! For drawing on lines and not using prefab'd tubing, the lines are where they should be for the most part. You'll find that working vac stack tubing vs doing the balls you have now are *totally* different, because of the difference in thickness and color saturation. The mostly clear ones are a little weird to work and not even to begin with because the lines were drawn on in areas rather than encased with the same thickness throughout.
You'll notice the first pic, you can see the color through the ball. That is bad. That means the color lines were pulled too thin or it isnt saturated enough. A color rball should not be translucent at all, if it is, its too thin. (Then again, this is more for vac stacks, and you have clear practice line balls, but ya know).......
So, what to make with them?
--> You could make a spoon and have the terminations on either side of the spoon body
--> You could make a dish with the work in the middle, but that rball is probably about 3x larger than you'd want to make a dish out of (TINY balls for dishes!). But rather than the work being centered in the center of the dish, the ball could BE the dish and have the lines work their way all around.
--> You could connect the balls together, and make a 4-ball sherlock or something. Or a mini oil rig even (!!). Practicing connecting rballs together is something that I need to do, too. Its not that its hard, but cant mess up the lines!
#1 rule when making rballs is to use the marver as LITTLE as possible. Marvers mash things which makes lines crooked.
Cant wait to see what ya made!