The vibrator that Nancy is using is not the one that Andy gave her in Fashion of the Christ (2005). Instead it is likely "the smaller one" that Lupita referred to in the same episode, presumably because the one Andy gave her does not have batteries in it.
At 21:16 as Andy tells Sharon about his ex, in one sentence he refers to his one ex as Vanessa, Valerie and Veronica. Sharon either doesn't notice or chooses to ignore his confusion.
In an earlier episode Andy thinks at loud about the family being Jewish which is no surprise as his brother's given name was Judah. In this episode at 13:08 Lupita is going through some of the family's stored "holiday stuff" she pulls out a menorah which is part the Hanukkah tradition.