Nice idea; very practical! Opening plastic packaging can be a pain!!! And, as long as we are talking practical, consider this advise...
2 Timothy Chapter 2
15 Give diligence to present yourself approved by God, a workman who doesn’t need to be ashamed, properly handling the Word of Truth.
19 However God’s firm foundation stands, having this seal, “The Lord knows those who are his,” and, “Let every one who names the name of the Lord depart from unrighteousness.”
22 Flee from youthful lusts; but pursue righteousness, faith, love, and peace with those who call on the Lord out of a pure heart.
But, someone may say- "that just applies to preachers". Well, it is true that Paul (an apostle of Christ) was writing to Timothy (who was a preacher), but honestly, these tidbits of what-to-do and what-not- to-do are really useful for us all. And you don't even need to have a can opener handy!!!