Take Wilfred Owen's poem, Conscious. Find it here: http://www.poemtree.com/poems/Conscious.htm
Write it out, leaving a blank space under each line.
Interpret each line as you understand it, using your own words.
Take what you have written and re-write it without looking at the original poem.
Check that you have not used any of Owen's words or phrasing: you should have an entirely different poem.
BE VERY CAREFUL NOT TO PLAGIARISE! There is no copyright on ideas but there is on words.
Try not to have the same form; the poem is a starting point, not a template.
Reference the original poem in the title e.g. After Wilfred Owen's 'Conscious'. I once used Owen's Anthem For Doomed Youth in this way, made it about Afghanistan, and called it Afghan Anthem. The poem was nothing like the original; it was simply the inspiration for it.