You could use them as 'reverse' lines on a jumper once you are spinning more evenly, so they stand out as textured effects. My first jumper I did with Fibonacci stripes - ie in the Fibonacci sequence of 0+1=1, 1+1=2, 1+2=3, 2+3=5, 3+5=8, 5+8=13, 8+13=21, etc so you do your contrast stripe every 1st, 2nd, 3rd, 5th, 8th, 13th, 21st and so on row. It sounds complicated but just about keeps your brain alive when knitting alot

and is a very pleasing spacing for any pattern - the rows keep getting further and further apart. The Fibonacci sequence is found in nature in things such as the way sunflower seeds grow, population explosions and so on.
Alternatively you could knit a beanie hat - that can be as lumpy bumpy as you want
