Jumuisha kila moja ya yafuatayo kama mviringo au mraba sura: gurudumu, napkin karatasi, block jengo, pete, sarafu, mpira, gridi, mkate, Bubble, dice, hula hoop, dirisha, muhuri, dunia, msalaba, ngoma, bagel, ufunguo keyboard, mchemraba, herufi O.
Vitu ambavyo vina umbo la mviringo ni: mkate, mpira, Bubble, sarafu, ardhi, hula hoop, herufi O, pete, ngoma, gurudumu. Vitu ambavyo vina umbo la mraba ni pamoja na: mkate, vitalu vya ujenzi, maneno ya msalaba, mchemraba, dadu, gridi, ufunguo wa kibodi, kitambaa cha karatasi, stempu, dirisha.