What about a nice silicone ring set (I'd personally love this because it is similar to my actual set: https://smile.amazon.com/dp/B07L3MM6GN/ref=cm_sw_r_apan_glt_fabc_SMGCF608JAM9R0P8S5R0?_encoding=UTF8&psc=1)?
Maybe also something blue for her to have that day?