I just made up a clip to go over the rim of the end of sardine cans,
ringpull end. Stainless steel strip , ex-rear blanking/closure for
desktop pc expansion card slots. Hammered over a return at one end, to
locate over the can rim and then a bend to be able to hold down the can
onto a table surface, with fingers well away from any of the sharp
edges. I'll give it a test drive this evening.


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Global sea level rise to 2100 from curve-fitted existing altimetry data
http://diverse.4mg.com/slr.htm