Practically Positive Publishing Logo/Symbol

This is what PPP - Practically Positive Publishing (see above as this will be split) was looking for in their logo design

I am about to self publish a series of workbooks and want a symbol that represents positivity. I am thinking that the 'symbol' (like the Nike tick or the Penguin's penguin!) will be on the spine of the book with the letters PPP below it. The sort of things that represent positivity for me are as follows but I'm ahppy to consider soemthing abstact.
> Thumbs up
> Star jump (but seems to be common these days)
> Smile - but not the well known smiley
> OK sign used in diving
I have registered the domain name practically positive and so this symbol may also become a logo for the website but at the moment it's important I can get these books published!

I am happy for anyone to email me to clarify my requirements if I have not made myself clear.

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