Bem, achei esse menu bem fofo no bloggertrix, fiz algumas alterações e encurtei os códigos e estou aqui repassando à vocês :3

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Para começar, copie o código abaixo e cole em seu css.

.button a{ font:15px Calibri, Arial, sans-serif; text-shadow:1px 1px 0 rgba(255,255,255,0.4); text-decoration:none !important; white-space:nowrap; display:inline-block; vertical-align:baseline; position:relative; text-transform:uppercase; cursor:pointer; padding:10px 20px; background-repeat:no-repeat; background-position:bottom left; background-image:url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'); background-position:bottom left, top right, 0 0, 0 0; background-clip:border-box; -moz-border-radius:8px; -webkit-border-radius:8px; border-radius:8px; -moz-box-shadow:0 0 1px #fff inset; -webkit-box-shadow:0 0 1px #fff inset; box-shadow:0 0 1px #fff inset; -webkit-transition:background-position 1s; -moz-transition:background-position 1s; transition:background-position 1s; } .button a:hover{background-position:top left;background-position:top left, bottom right, 0 0, 0 0;} .button a:active{bottom:-1px;} .button.small a{ font-size:10px;} .gray.button a{ color:#525252 !important; border:1px solid #a5a5a5 !important; background-color: #a9adb1; background-image:url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(197,199,202,1) 0,rgba(197,199,202,0) 100px),-moz-linear-gradient(#c5c7ca, #92989c); background-image:url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(197,199,202,1)), to(rgba(197,199,202,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#c5c7ca), to(#92989c)); } .gray.button a:hover{ background-color:#b6bbc0; background-image:url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(202,205,208,1) 0,rgba(202,205,208,0) 100px),-moz-linear-gradient(#d1d3d6, #9fa5a9); background-image:url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), url('https://lh6.googleusercontent.com/-4cWMlF-uqh4/TltCfL8C4DI/AAAAAAAABhE/qNaNueMVpCU/s144/button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(202,205,208,1)), to(rgba(202,205,208,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#d1d3d6), to(#9fa5a9)); }

Bem, façam suas modificações como quiserem... e depois colem o código abaixo onde querem que o menu apareça.

<div class="button small gray"> <a href="#">Link</a> <a href="#">Link</a> </div>