This small blade is inspired from an orange peeler.
You may scale it a little bit for example in 'x' direction if you want it a bit shorter or longer. The version I mostly use is shortened by scale 0.6 in x direction. I use it to clean the metallic filter of my coffee machine.

LOGresse

No

No

Layer height 0.1mm

30%

In order to avoid warping effect on such long objects, I usually add small discs at both ends, 1 layer thickness. (See picture). You may use brim instead.

From a SW model I made a few years ago (orange peeler). I imported and modified the peeler end to replace by a handle, and just kept the blade.
In Onshape search for "raclette_cafe_PM"