Make some building especially a castle - its not so easy but it's very interesting to perform such tasks while playing games. If game lags, freezes or bad video card errors appears while making some huge buildings then i would suggest to update graphics drivers.
You can also find some helpful material here:
Castles are fun cause you can build secret mines in them and make them out of cobblestone which is easy to get. My boyfriend and me made a gingerbread house out of brick and sandstone which was hard cause it takes 4 clay to make brick and like 2 or 4 brick to make brickstone lol
Hahaha I'm not very good at building but I have built castles in my past! Does it have too be a huge castle?
An epic castle surrounded by a medieval city, a fort :) or find an awesome cave and make it your home...
Make a building from a favourite movie or tv show? =]
A giant spaceship in the sky.
I don't watch films or TV Dx