6 Sweet Kittens to Loving Homes (Minerva)

My sister and I have been taking care of/fostering 6 very affectionate and sweet kittens since they were born on Dec.
13, 2023.
They are 6 & 1/2 weeks old.
They will be 7 weeks old on Wed.
They were my Mother's Significant Other's Kittens and he does not want them and did not care for them.
We love them but are not able to keep them as we have cats of our own and are not able to have any further.
My sister and I trained the kittens to socialize, to be affectionate, to cuddle, to lovingly play, and use a litter box.
They are also eating kitten food now.
There are 4 boys (an all gray, a fuzzy gray/white with stripes, another gray/white with stripes, and a black/white with stripes) and 2 girls (a fuzzy gray with white patches underneath and a fuzzy black kitten).
A small re-homing fee of $20 per kitten will be charged.