I'm quite fond of the phrase 少块肉, as in 又不会少块肉 or 能少块肉吗?.
- What synonyms of 少块肉 exist in Chinese?
sometimes we use "死不了" in similar situations. For example:
1 别抽烟了,忍一忍,死不了。 2 不用担心,死不了。
Hope this can be of some help.
不妨 or 无妨 come to mind, surely there are others.