Portable toys to keep 15-18m.o. amused?

[elk4baby]

I'm looking for suggestions for good toys to keep my now 15m.o. DS amused on car journeys, in the buggy, at a restaurant, etc.
Something that wouldn't end up all over the floor in a 1000 small pieces if he drops it. Something that's fairly easy to take on the go. Yet, extremely interesting/amusing, so he'd spend more than 5 minutes with it in hand.
Am I looking for something that simply doesn't exist?

My 18 month old dd loves her magnetic drawing board thingy. Easy to carry around and keeps her occupied for ages.
She has this one

does he really need entertaining in the buggy? there's a whole world going by for him to watch!
in restaurants there are napkins to play with, hide under them, make a hat with them etc discuss the menu as though its a thing of fascination...
not sure about the car though...

oh yes dd like her magnetic drawing thing too, good suggestion, and the pen on dd's is attached with a string so can't be dropped

In the buggy, he's normally happy actually. But does get bored if we're on the train or somewhere else and not moving.

we try and make do with what's around alot because we don't drive so I'm always carrying everything, on the train/tube we look at the free newspapers and make hats etc out of them, collect interesting leaflets which can be made into things, roll them up and they're telescopes that sort of thing... then when we get off the train it can all go in the bin, (unless DD has fallen in love with a particular leaflet as occasionally happens...)
I also make up versions of fairy tales, play point to your nose/hair/ears etc. I normally have a pen and a small notepad with me for scibbling - DD comes to alot of meetings with me and so most of my work notepads/sketchpads are filled with her scrawlings!

An aquadraw is great - small enough to keep in change bag.

btw, most of the aquadra/magnetic thingies say that they're made for ages 3+. Are they ok to use with a much younger toddler?

we got an aquadraw when dd was 18m and a magnetic drawing thing for her 2nd birthday.
only thing with the aquadraw is you have to wait for it to dry to draw something new, the magnetic drawing thing can be instantly wiped.

Yes, they're fine for a younger child. The only thing to be aware of is if they have those little stamp things to draw patterns with they may be able to choke on them if they're still in the put everything in the mouth stage, but you can always take those off if its a problem.

The little pen thing is attached by a short piece of string so shouldn't be a problem.