i would like this flower to be made in pink 。
in 如何翻译

....made in pink 应该是...made in pink color的省略。因为众所周知这里指的是颜色。 in这里是表示用，以(某种颜色)。

关于in+颜色，以红色为例，有两种用法：
【1】 Sb + in + red [表示服饰颜色]穿着; 戴着; 带着某种颜色的衣服
=Sb + in + red clothes
如：
the girl in red
in red 其实是in red clothes的省略，用来做定语修饰the girl.整个意思是“那个穿红色衣服的女孩”。

【3】
do sth in red 用...(颜色)做某事=do sth in red color的省略
Sth be done in red 被动=Sth be done in red color的省略
例如:
i would like this flower to be made in pink (被动)
=i would like this flower to be made in pink color
or
i would like to make this flower in pink（主动）
= i would like to make this flower in pink color