<p>If it’s a joke club that requires no effort and sounds ridiculous (not saying that any of the aforementioned ideas fit into this category), admissions officers would obviously disregard it and prefer something more authentic, albeit common, like MUN.</p>
<p>Unique extracurriculars are good in general because it’s good to stand out somehow. But petty clubs =/= unique extracurriculars.</p>
<p>If you want to spin an activity like D&D into a club, make sure it’s something fairly popular (that would attract a solid amount of members) and make it something charitable. Like, host D&D tournaments with registration fees and donate the money to a not-for-profit.</p>
<p>And if sky-diving club goes sky-diving regularly and you personally have to organize things, then obviously that shows leadership and that’s great.</p>
<p>I’m not gonna touch the clam farting one. 
Nice CC culture reference.</p>