With the help of a site from
two_star (http://dogfeathers.com/java/hyperstar.html - need Java and stuff),
olethros and Terry Pratchett, I've decided that the best 2/3-D representation of a hypersphere - specifically a glome - is probably a cigar, or possibly a rugby ball, or a blimp. It may not be accurate, but it's close enough for me.
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