What can i get for my bf? n soon?

by tuesday he leavesfor a trip to europe, he isnt comeing back till the end of next month, hopfully, he may stay up there.... anyways if he does come back ill be gone on a trip of my own.... we have been going out for more than a year, he loves sharp object (ex. gerber knifes, guns etc...) he knows everythin i love, and always knows just what to get me, but for me to give him something i havw no clue.... he thinks i dont really love him anymore since we havent really been seeing eachother lately.... :( sadly im more in love with him than ever! :( I want to get him something that shows him how much i love him, and no matter how far apart or how much we dont talk, ill always be here waiting for him, and always love him! he trashes all papera he gets it dosent matter if its from me or what...... i need a idea of what to get him before tuesday!!! help me please?!!!