I use iceing spatulas from Amazon

Ateco 1307 Ultra Offset Spatula with 7.75 by 1.25-Inch Stainless Steel Blade, Plastic Handle, Dishwasher Safe, Silver https://www.amazon.com/dp/B000BRQXVW/ref=cm_sw_r_cp_apip_METSEYMvRPlM1