We　propose　a　scheme　for　generating　superpositions　of　several　coherent　states　along　a　straight　line　for　the　motion　of　a　trapped　ion.　In　the　scheme　the　ion　is　excited　by　one　laser　field　tuned　to　the　carrier　and　then.　by　two　laser　fields　tuned　to　the　first　lower　and　upper　vibrational　sidebands.　The　procedure　is　repeated　several　times.　Then,　a　state-selective　measurement　of　the　internal　state　collapses　the　vibrational　motion　to　a　coherent-state　superposition.