Update 0.0.4 is now live. You should be able to have lots of fun with this one :)
Changelog:
Added experimental weld tool (use it by aiming at object A, then use the weld option, then aim at object B and use the weld option again)
Added possible new domino model to the game. Let me know what you think about this.
Added some bounce to the balls
Added options to scale the world and to ajust the floor height (I suggest not using scale at this time, it is very buggy)
Added reset buttons for all sliders in the game menu