1. Making tzuros - The gemara includes in this the issur to replicate the shamashim in mikdash, tzuras adam (R' chananel- since G-d appears to nevi'im as a person), tzuras daled panim, tzuras madur haelyon and tachton. There is an issur even to tell a goy to make it bec. of amirah l'nachri unless it is for a mitzvah (tosafos) [which seems to be like the ba'al haitur mentioned in the Rama o.c. 266 that shevus is mutar for mitzvah need, but the ritvah implies that kiddush hachodesh mitzvah might be different, and rashash says the issur shabbos may be more chamur]. This issur applies even if it is only 2d (see comment for proof from tosafos).
2. Chashad - Acc. to both rashi and tosafos it means that people will be choshed you of worshiping these things. The issur applies to all mador hatachton (as seen from r' gamliel), and partzuf adam (as seen from andarta) and acc. to tosafos even to a darkon (snake) since it is often a form made for avodah zarah [even though the darkon is mutar to make]. Although the gemara says the issur is only if it 3D(bolet), tosafos holds that objects that are seen as 2D, are assur even to make 2D. It is not so clear what is the geder of leaving these things around bec. of an issur chashad. Rashi by the ring indicates it is only an issur to wear but not to leave in your house [acc. to this why should the tzuros of r' gamliel be assur (if not for the 3 answers at the end of the sugya) - perhaps public a display in a private home is the only time it is assur [like r' gamliel who used it to show the eidim] but if it is not displayed [like the ring sitting at home] or it is displayed in a public area [like andarta], it is mutar]. but tosafos (end of d.h. sha'ani - see tos. harosh) seems to hold that it is only mutar by things that will not be around for a long time.
