$ to 🕭 Bookmarklet

bells.js

/**
 * Converts dollar signs to bell symbols
 * Tom Nook prefers it this way
 */
var node,
    nodes = [],
    walk = document.createTreeWalker(
        document.body,
        NodeFilter.SHOW_TEXT,
        null,
        false
    );
while(node = walk.nextNode()) {nodes.push(node);}
nodes.forEach(function(node) {
    if(node.textContent.includes('$')) {
        node.nodeValue = node.nodeValue.replace('$', '🕭');
    }
});

/**
 * To make a bookmark item that converts the current page, 
 * copy this minified version to the "location" of a bookmark:
 */
javascript: for(var node,nodes=[],walk=document.createTreeWalker(document.body,NodeFilter.SHOW_TEXT,null,!1);node=walk.nextNode();)nodes.push(node);nodes.forEach(function(e){e.textContent.includes("$")&&(e.nodeValue=e.nodeValue.replace("$","🕭"))});;