Q. If someone bought some expensive shoes for Pesach that he usually makes sheheyanu on them, but did not use them then. Can he wear them on Shabbos after Pesach and say the brocho?
A. See question above regarding reciting Shehecheyanu when a baby girl is born during Sefiras Haomer.
On question 539 regarding a new suit bought before Pesach but not used then, since it was only shatnez tested after Pesach. If one can wear it for Shabbos during sefira and say Shehecheyanu, we wrote: Mishna Berura (493: 2) and Kaf Hachaim (ibid.) rule that if someone came across an item on which normally we recite shehecheyanu, he should recite so during sefira.
Other Poiskim however, mention different minhogim and opinions, and maintain that the common tradition is not to recite this brocho; some recommend doing so on Shabbos (Leket Hayosher p.97, Dover Meshorim 26.)
Horav Shlomo Miller’s Shlit”a opinion is that definitely on Shabbos he is permitted to wear the suit and recite Shehecheyanu. (See also question 2269)
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a