A JS bookmark that prompts for a piece of swappable URL params, and navigates to it in a new tab.

site-filter-bookmarklet.js

javascript:(function() {  
  var url = "https://www.google.com/search?safe=active&biw=1302&bih=916&tbm=isch&source=lnt&tbs=isz:ex,iszw:128,iszh:128&q={q}";
  var prompt = 'Name the icon:';
  var input_text = '';
  function isValid() {
    return q.length > 0;
  }

  function getQuery() {    
    return window.prompt(prompt, input_text);  
  }; 
  var q = getQuery();  
  if (q == null){   
    return;
  }  
  while (!isValid(q)){    
    var q = getQuery();  
  }  
  window.open(url.replace('{q}', q)).focus();
})()

Another example to search for a JIRA ticket.

javascript:(function() {
  var url = "https://goscoutgo.atlassian.net/browse/{q}"; 
  var prompt = 'What Jira Ticket are you looking for?';
  var input_text = 'SCR-';
  function isValid(q){
    return (q.indexOf('-') >= 0 && q.split('-')[1].length > 0);
  }

  function getQuery() {    
    return window.prompt(prompt, input_text);  
  }; 
  var q = getQuery();  
  if (q == null){   
    return;
  }  
  while (!isValid(q)){    
    var q = getQuery();  
  }  
  window.open(url.replace('{q}', q)).focus();
})()

MILTON TPX Jenkins Build Params

javascript:(function() {
  var url = "https://jenkins-ci.goscoutgo.com/job/milton-tpx-ci-github/{q}/parameters/"; 
  var prompt = 'What Milton-TPX build are you looking for?';
  var input_text = '';
  function isValid(q){
    return q !== '';
  }

  function getQuery() {    
    return window.prompt(prompt, input_text);  
  }; 
  var q = getQuery();  
  if (q == null){   
    return;
  }  
  while (!isValid(q)){    
    var q = getQuery();  
  }  
  window.open(url.replace('{q}', q)).focus();
})()

SCOUT-APP Jenkins Build Params

javascript:(function() {
  var url = "https://jenkins-ci.goscoutgo.com/job/scout-app-ci-build-github/{q}/parameters/"; 
  var prompt = 'What SCOUT-APP build are you looking for?';
  var input_text = '';
  function isValid(q){
    return q !== '';
  }

  function getQuery() {    
    return window.prompt(prompt, input_text);  
  }; 
  var q = getQuery();  
  if (q == null){   
    return;
  }  
  while (!isValid(q)){    
    var q = getQuery();  
  }  
  window.open(url.replace('{q}', q)).focus();
})()