As specified within the rules of the games, the Two Ball and Delta goal totems may be of any shape but circular in cross section throughout their entire height, no shorter than 120 centimetres, standing on a 15 centimetre base, and no less than 20 centimetres at their greatest diameter. The totems' centres of mass may not be lower than 30 centimetres above their bases. Variations on the rules permit other objects to be used as totems.
•Are the totems, as specified, stable standing on their goal surfaces?
•Or are they too unstable for fair and reasonable play?
•Do they make a sufficient but not too easy a target for ball handlers to throw at?
•Are they defendable by the goal tenders without undue risk of a goal tender accidentally knocking them over?
As specified within the rules of the games, the Two Ball and Delta goal surface is a circular surface of unspecified construction that must be mounted level (as determined by a spirit level) on the playing field, no more than ten centimetres above the highest point on the ground beneath it. It is one metre in radius and supported at four points, one at its centre and three on its circumference.
•Is the goal surface a challenge to design and build for a non-professional organization?
•Or is it within the realm of capability for amateur builders?
•Does the support for the goal surface present undue risk of the goal tender accidentally knocking the goal totem over?
•Or does this risk enhance the excitement in unpredictability of the games?