I saw an online ad for a this photo ball / crystal (not sure the exact name). It cost something like $50-$80 so I was like hell no! Checked on Ebay - found one for about $15 - sold!

You can get them super cheap: https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR4.TRC1.A0.H0.Xphotography+crystal.TRS0&_nkw=photography+crystal&_sacat=0

Only thing is that it's heavy to take with you on a plane / traveling.