Thus I add some card board stripes to the shipping.
If the figure is too lose in the standee, please add a little strip in the back of the bottom of the figure.
Please cut these stripes to the appropriate wideness of the figure base and put both (figure and stripe) carefully into the plastic standee. (The additional small stripe should be on the back of the figure to not cover any printed part.)
I also add some miscut figures to your shipping, so that you can first experiment with it. Actually it is not that hard or complicated.
Cutting stripes to smaller pieces | stripes put together with figures into bases |