on figures i also do the 'drill a hole in the foot' trick, but i use a stainless steel sewing pin superglued in....cos when its all done a twist and it comes out
i have a trick for tanks..........i have some threaded rod, about 8mm diameter, 150mm long, and a large supply of suitable nuts.......i make a hole in the centre of the hull and bond in a nut with 'no nails' type adhesive.....build up the rest of the hull.......put a nut/washer on the rod, screw the rod into the nut through the hull.......wind up the nut/washers to make it all tight and presto the hull now has a handle.....i have a block of wood with a hole in to take the rod so it all stands up.....when you finished just wind out the rod, all it leaves is a hole in the hull you cant see....wish i could remember where i learnt the tip but it was a long time ago