Help -car etc plans needed

Ladies and Laddies

Howdy

My men's shed has a need for some basic vehicle and toy plans

The thought is that there are a number of members whom don't have any particular projects of their own
There are also a number of community pre-schools and council run day care centres in the area who would love some wooden toys

So what I'm after is recommendations for plans for sturdy toys - the ones that are not too intricate and have stood the test of time.
And the sort that can be made by men's sheddies who do not necessarily have a high set of woodworking skills but will learn some woodworking basics while making toys. Eg oneye's race cars look pretty speccy but we need to be able to use the plans - and I don't want to steal anyone's intellectual property

I've thought of dolls houses and block sets (like those made for my son's school last year)

So what I'm doing is asking for your wisdom in pointing me to the wooden toys which have stood the test of time. If you have a favourite I'd love to know what it is (and a link would be nice)

in the meantime I am going through a few books I have along with searching the web and generally looking in this part of the forum