I do great with putting them together, it's just the taking them apart I can't do well. Whats the worst with lego's is when you put a bunch of flat ones together all lined up even so you have to pry them apart with a butter knife.
Duplo's are those HUGE lego's made for preschoolers and you probably wouldn't have much fun with those.
I really liked them as a kid, but for some reason I never play with anything now that I'm grown. I want to, but I don't. I would sometimes make lego stuff with my kids but it wasn't fun because they wanted to hog all the good pieces, and as their mother I didn't think it would be right to snatch them away lol.
I also used to like Lincoln Logs. I think they are made out of plastic now aren't they? I know the roof pieces are. When I was a kid, they were all wood, the roof's included. You could get splinters from the roof planks.
Also, when I was really little, the first Mr Potato Head kit I got came with just the face pieces and you used a real potato. I'm that old.
Have you seen that huge lego store in Minnesota? They let you come in and play.
Is your problem with putting them together more or taking them apart? If it's taking them apart, you could use a metal nail file or a butter knife. That's what I did even as a kid to take them apart. My grandmother figured it was safer to give me those implements than it was to let me try and bite them apart and choke on it.
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I'm giving it another shot. We will see.
My forum is still there and everyone is welcome to come join as well. There is a private women only subforum there if anyone is interested. Also, there is no CAPTCHA.

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