Thingummyjig

Another grey and gloomy day,
calls for some colour in close up.


What am I?
on a boat at Bozzum


I may be encrusted
but trust me
to do the job
I'm a thingummy bob.

It might not be clear
what I do, my dears.
That's for me to know
Have a guess, have a go.

I'm a thingummyjig
and not too big
just the right size
so no sighs,
let's get on
I've only so long
to sing my song

No more clues
sing the blues
Gotta bow out
give me a shout
when you know....
the answer's below -

I'm an oojamaflip
Now .... Toodle-pip.